Projector Review: October 2005

9:39 AM

Mitsubishi XD400U Projector Review

Mitsubishi XD400U Portable XGA DLP projector

XGA (1024*768)
2100 ANSI lumens
2.9kg (6.4lbs.)
5000 hour lamp life (typical)
2200:1 Contrast Ratio
Monitor Out
Picture in picture
Includes Case
Includes remote mouse function
PAL Progressive Compatible
RGBW 4 segment color wheel
sRGB

Mitsubishi's latest generation of high-performance cross-functional ColorView DLP projector is represented by model XD400U. With a new chassis design, increased brightness, better video, and longer lamp life, Mitsubishi's new XD400U delivers long-term performance and value.

Mitsubishi’s XD400U XGA DLP projector is 2100 lumens bright with a 2200:1 contrast ratio. Having connectivity such as two RGB video inputs and variable audio output, input switching boxes are unnecessary, and sound can be reinforced with an amplified loudspeaker. CineRichColor™ enables the user to select levels of white enhancement for optimal data and video use. At 6.5 pounds light, the XD400U is perfect for desktop or installed applications

This is the BEST BUY of it's kind in the category of having 2100 Lumens, 2000 Contrast Ratio, 5000 Hour Lamp life and DB9 Video/Computer out connections. The picture is really sharp, clean, crisp and it's a joy when it comes to having it as a Home Theater Projector. It can give you a screen up to 300". I have it at 149" and as a result, we never go to a theater anymore. Add to that a great Dolby 9.1 (upgraded from 7.1) DTS sound effect, and you are home free if you have a basket of popcorn and lots of movies at your disposal.

Category Micro Projectors
System 12 degree DDR DLP
Resolution XGA (1024*768)
ANSI Lumens 2100
Contrast 2200:1
Lamp 200w , 5000hrs.(typical)

Lens F=2.4-2.6
Interchangeable No
Image Size 40" - 300" diagonal (Click for chart)
Throw Distance 1.30m - 12.12m
Keystone Yes

Computers VGA, SVGA, XGA, SXGA
Video PAL, SECAM, NTSC
Horizontal Freq. 15-100kHz
Vertical Freq. 50-120Hz
Computer Inputs 15 pin d-sub * 2 + out
Video Inputs Composite
S-video
Component (via 15 pin d-sub)
HDTV 480i/p, 525i/p, 720p, 1080i
Audio 2w mono
Remote Mouse emulation
Mouse USB
Noise 30db.
Dimensions 310mm(W) * 100mm(H) * 245mm(D)
Weight 2.9kg
Power Supply 100-240v AC, 50/60Hz
Power Consumption 280watts
Warranty 3 year loan support (90 days on lamp)
Accessories Power cord
AV cable
RGB cable
RS-232C cable
USB cable
remote control
soft carry case
quick start guide
safety manual
user manual on CD

4:49 PM

Sony VPL-CX86 Review

Sony VPL-CX86 Projector
Display Type LCD
Resolution XGA
Brightness 3000 lumens
Weight 3.8 kg
Keystone Correction Yes
Fan Noise 28 db
Warranty 3 years collect and return

Wireless presentations are made truly simple with the VPL-CX86, using Sony's Air Shot technology and Memory Stick media. 3000 ANSI lumen, XGA, 350:1, enables a faster and more secure connection. Suitable for rooms with high level of ambient light - it is extremely quiet with an operating level of just 28dB.

Weighing only 3.8kg, the VPL-CX86 is light enough to be a portable projector that can be easily transported between meeting rooms or used as an entry level install unit.

The VPL-CX86 incorporates Sony's enhanced Air Shot technology providing 802.11b/g wireless networking capability for even faster wireless presentation capability. The VPL-CX86 provides a brightness of 3000 ANSI lumens in a compact design suitable for almost any presentation application. The VPL-CX86 features Advanced Intelligent Auto Set-up functionality. The projector's extremely low fan noise (28dB) allows a speaker's points to be clearly heard. This model is equipped with 2 RGB input connectors and 1 RGB monitor output connector for additional configuration flexibility. For example, educational presenters can simultaneously drive the projected image and their own computer monitor without requiring an external control system.

To keep the projector secure, it also comes equipped with password protection that prompts users for a pre-determined password before it will operate fully.

Sony VPL-CX86 Specifications

Category Portable Projectors
System 3 * Polysilicon LCD
Resolution XGA (1024*768)
ANSI Lumens 3000
(2200 in eco mode)
Lamp 190W UHP (150W eco)

Lens F1.6-1.78 f=23.5-28.2mm
Interchangeable No
Image Size 40" - 300" diagonal (Click for chart)
Throw Distance 1.16m - 10.42m
Keystone 30º

Computers VGA, SVGA, XGA, SXGA
Video PAL, SECAM, NTSC
Horizontal Freq. 19-92kHz
Vertical Freq. 48-92Hz
Computer Inputs 15 pin d-sub
Video Inputs Composite
s-video
HDTV 480i/p, 575i/p, 720p, 1080i
Audio 1w Mono
Remote Mouse emulation
Dimensions 328mm(W) * 92mm(H) * 283mm(D)
Weight 3.8kg
Power Supply AC100-240V 50/60Hz
Power Consumption 280watts
Warranty 3 Year RTB (90 Days on lamp)
Accessories Remote
Soft Carry Case
2m VGA Cable
Operating Instructions
Quick reference sheet

6:07 AM

Epson PowerLite 61p Review

Epson PowerLite 61p Ultra-portable SVGA LCD projector

With a host of high-performance features, the Epson PowerLite 61p is the ideal solution for virtually any presentation. Its flexible connectivity, plus powerful 5 watt audio make this SVGA unit perfect for any classroom or board room. Epson high-aperture LCDs work with its brilliant 2000 ANSI lumens to deliver accurate color, superior color saturation and remarkable image quality in any setting. And, with four input connections, plus automatic source selection, setup and operation couldn't be easier! Just plug it in, and you're presenting within seconds. With whisper-quiet operation, unbeatable reliability and a convenient carrying case, the Epson PowerLite 61p ensures quality presentations that really make the grade.

Overview:

Ultra portable: just 8.9 lbs and 10.7" x 13.8" x 4.3" Roughly the size of a laptop computer and fits most laptop carrying cases.
Exceptional images: uses a high-quality three-LCD optical system to maximize contrast and color depth. Eliminates hotspotting typically found in compact DLP projectors. Optimizes the image during setup.
SVGA resolution: native 800 x 600 resolution
Improved SizeWise intelligent compression: shows very clean XGA (1024 x 768) images.
Very bright: 2000 ANSI lumens.
Remote control Source selection, power, page up/down, color mode, volume, e-zoom, a/v mute, freeze, resize, menu, help, pointer. Operating Angle: Right/Left +/- 30°, Upper/Lower +/- 15° Operating Distance: 20ft (6m)
Ceiling mountable for front or rear projection.
International video standards: projects NTSC, PAL and SECAM.
Zoom lens: easy to adjust screen size.
Flexible installation: unlike most ultra-portables, can be used with a front or rear screen, on a table or stand or ceiling-mounted.
Digital keystone correction ensures rectangular picture even if projector can't be perfectly positioned in relation to screen.
HDTV-ready, supports 480i, 480p, 720p, 1080i and 1080p formats

Native resolution 800 x 600
Intelligent resizing 1024 x 768
Brightness (ANSI lumens) 2000
Max resolution SVGA
Weight (lbs.) 8.9

Amplifier/speaker 1W
Aspect ratio 4:3, 16:9 or 5:4
Ceiling mountable yes
Contrast ratio 400:1
Dimensions (WxHxD rounded) 10.7" x 13.8" x 4.3"
International video yes
International voltage yes
Keystone/lens shift digital +15º to -15º
Lamp life (hours) 2000
Lamp type 160W UHE
Monitor loopthrough no
Motorized focus no
Mouse control USB, PS2
Number of colors 16.7 M
Panel type 3 LCD (.7")
Pointer electronic
Rear projection yes
Remote control backlit
Scan rate, horizontal (kHz) 15-92
Scan rate, vertical (Hz) 50-85
Screen--largest recommended 300"
UL commercial listed yes
Video line doubler yes
Video resolution, horz. (lines) 750
Warranty 2 year (lamp 90 days) with Road Service Program for loaner typically within 24 hours
Zoom lens 1:1.2

Analog RGB inputs 1 15-pin (switchable with component)
Analog RGB outputs no
Digital video input (DVI) yes
Component video input 1 15-pin (switchable with RGB)
S-video inputs 1 4-pin
S-video outputs 1 4-pin
Composite video in 1 RCA
Composite video out no
Audio in 1 stereo mini, 1 RCA L/R
Audio out 1 stereo mini

10:45 AM

Sanyo PLV-Z2 Review

Sanyo PLV-Z2 Projector
The Z2s widescreen native LCD panel is true HDTV (1280x720) and a perfect match for viewing 16:9 widescreen DVD movies and HDTV (720p, 1035i, or 1080i) formats. Using a high-contrast optical system, the Z2 is able to produce a stunning 1300:1 contrast ratio.

The Sanyo PLV-Z2 is equipped to accept a variety of input sources including PC, DVD and games consoles. Connections include Component Video in, S-Video in as well as DVI-I in.

The Z2 features manual vertical and horizontal lens shift that lets the user adjust the position of the projected image relative to the projector. It also offers an adjustable lens aperture that lets the user select either optimum brightness or optimum contrast depending upon the best option for the particular viewing environment. Air intakes are on the rear and bottom of the unit, and exhaust is out the side, making it suitable for easy shelf-mounting on a rear wall.

In "Theatre Black Mode" the PLV-Z2 produces an amazingly low 24db noise output level.

Features of the Sanyo PLV-Z2 include:

Type - LCD Projector
Display Technology - TFT Active Matrix
Image Brightness - 800 ANSI lumens
Contrast Ratio - 1300:1
Platform - PC
Form Factor - Portable
Max Resolution (Native) - 1280 x 720
Max Resolution (Interpolated) - 1280 x 1024 (SXGA)
Image Size (Diagonal) - 31 in. - 200 in.
Image Aspect Ratio - 16:9 (Wide Screen)
Screen Distance - 3.9 ft. - 20 ft.
Synchronization Range Horizontal - 15 - 80 kHz
Synchronization Range Vertical - 50 - 100 Hz
Color Support - 24-bit (16.7M colors)
Operation Noise - 24 dB
Front Panel Controls - Keypad
Remote Control Features - Illuminated Remote
Interface - Serial (RS232) / Mini DIN 8-pin
Video Input - 4 Pin - Mini DIN (S-Video) / Composite Video / Component Video / DVI-I / RGBHV
Lamp Type - UHP
Light Source Power - 135W UHP
Light Source Life - 2000 Hours
Lens Shift - Horizontal / Vertical
Special Features - Keystone Correction
Projection Method - Front / Rear / Ceiling
Analog Video Format - NTSC / NTSC 4.43 / PAL / PAL-M / PAL-N / SECAM
HDTV Formats - 480i / 720p / 1080i / 1035i / 480p
Dimensions:
Width - 14.1 in.
Depth - 10.8 in.
Height - 3.8 in.
Weight - 9 lb.

2:45 PM

Sony VPL-CS20 Review

Sony VPL-CS20 Sony Video SVGA LCD Projector

With their slim, minimalist designs, the new range of Sony LCD projectors offer an ideal match to your ultramodern business office. Combining stylish curves, superb performance and compact portability, it enhances your corporate image. Combining intelligent set-up functions, powerful 2000 ANSI Lumens brightness and Multi-input versatility, the new VPL-CS20 projectors are exceptionally user-friendly. Both also incorporate the latest 3LCD Technology with Sony LCD panels for optimum color reproduction and true-to-life clarity, delivering a truly stunning presentation every time!

The newest evolution in high-performance projector technology, the VPL-CS20 utilizes advanced 3LCD Technology with Sony panels to deliver matchless brilliance and projection quality. This innovative system splits the light from the lamp into its basic red, green and blue components, then shines these individual colors through three separate liquid crystal panels. This allows purer, sharper and more defined color reproduction and detail - down to the smallest dot.

Weighing in at 1.9kg, the new VPL-CS20 are designed for maximum portability and convenience without sacrificing projection power. Its slim (52mm) and stylish body is carefully molded using a unique nano molding process, which allows aluminum to bond closely with resin to create a light, yet very strong and durable material. Non-frequently used buttons are hidden behind a cover to give you a cleaner design. And, its gently rounded edge is also designed to fit snugly into the hand - making it a pleasure to carry with you to your meetings.

The VPLCS20 data projector is the latest addition to the Sony family of high quality ultra portable projectors. You can carry it around, set it up quickly, and give high quality images with an impressive 2000 ANSI lumens for a persuasive presentation. Handsome looking from any angle, this projector is designed to provide extra versatility and maximum quality at all times.

Weighing in at just 1.9kg, the VPL-CS20 is among the most compact 2000 ANSI LCD projectors in the market. Encased in a sleek, durable aluminium exterior, its stylish curves create a professional look for corporate meetings and presentations. The auto setup capability allows for quick and easy setup and shutdown, saving valuable time.

Overview:
Extremely portable: only 4.2 lbs and 273x210x52mm
Terrific images. Uses a three-LCD system for the best possible sharpness and color saturation. Automatic pixel alignment optimizes the image during setup.
600 TV lines video reolution and 16.7 million colors.
Super Bright: 2000 ANSI lumens, enough to keep lights on in virtually any room.
SVGA resolution:
Very clean XGA (1024 x 768) using Sony's intelligent compression technology.
International video standards: projects NTSC, PAL and SECAM. Has worldwide power supply.
Digital Zoom lens: easy to adjust screen size.
Two-year warranty, (90 days lamp) with Sony On-Time Support, guarantying that repairs will be completed within 48-hours or Sony will provide a loaner.

Native resolution 800 x 600
Intelligent resizing 1024 x 768
Brightness (ANSI lumens) 2000
Max resolution XGA
Weight (lbs.) 4.2

Amplifier/speaker .5 W stereo (2)
Aspect ratio 4:3
Contrast ratio n/a
Dimensions (WxHxD rounded) 273x210x52mm
International video yes
International voltage yes
Keystone/lens shift digital
Lamp life (hours) 2,000
Lamp type 165W UHP
Number of colors 16.7 M
Panel type 3 LCD (.7")
Remote control yes
Scan rate, horizontal (kHz) 15-70
Scan rate, vertical (Hz) 48-85
Screen--largest recommended 150"
UL commercial listed
Video line doubler
Video resolution, horz. (lines) 600
Warranty 2 year (lamp 90 days)
Zoom lens 4X Digital

Analog RGB inputs 15-pin (switchable with component input)
Component video input 15-pin (switchable with RGB input)
S-video inputs 1 - 4-pin
Composite video in 1 RCA
Audio in 1 stereo mini

7:24 AM

BenQ PE5120 Projector Review

BenQ PE5120
Home Theater Projector 16:9 HDTV

Overview:
Remarkable 2000:1 contrast ratio
1100 ANSI lumens bright
True 16:9 - WVGA 856 x 480 - perfect for DVDs
Works readily with standard video or gaming devices such as DVD Players, VCR, or Playstation® from Sony and XBOX® from MicroSoft.
DLP Projection and 5 segment color wheel
6.4 lbs
Extended Lamp Life of 2000 Hours or 3000 hours in ECO mode.
HDTV Input Signal Support
Three-year parts and labor warranty, 1 year QXchange

Native resolution 854x480
Intelligent resizing 1024x768
Brightness (ANSI lumens) 1100
Max resolution XGA
Weight (lbs.) 6.4

Aspect ratio 16:9
Ceiling mountable yes
Contrast ratio 2000:1
Keystone/lens shift digital
Lamp life (hours) 2000
Panel type 16:9 DLP
Rear projection yes
Remote control yes
Screen--largest recommended 300"
UL commercial listed yes
Video line double yes
Video resolution, horz. (lines) 540
Warranty 3 year

Digital video input (DVI)
Component video input
S-video outputs

BenQ PE5120 Review:

The BenQ PE5120 DLP(tm) home theater projector offers a 2000:1 contrast ratio at 1100 ANSI lumens of brightness, and features DVI-I support with HDCP, S-Video, Composite and Component video inputs. With a native 16:9 aspect ratio and a resolution of 854x480 pixels (WVGA), the PE5120 also features a five-segment color wheel producing a full 16.7-million color palette to ensure excellent color reproduction. The PE5120 includes 3:2 pull-down for optimum reproduction of movies, Progressive-Scan to provide flicker-free images and Digital Keystone Correction capabilities.

The PE5120 home theater projector claims 1100 lumens, making it one of the brightest available (without spending 4x the price or more). Almost all home theater projectors are rated between 500 and 1200 lumens, and all primarily want pretty dark rooms to work in. This one, however, has a little extra umph, making it just a bit more able to handle low ambient light. That should be a real plus for regular TV and HDTV watchers and sports fans, where a near pitch black room is not their first choice. This projector will allow some controlled room lighting, even on a 100" screen, while you watch your favorite football team, etc.

Performance, and simplicity, are the two most noticeable attributes of this DLP projector. Take the 5120 out of the box, plug it in to your source (DVD, HDTV, etc.,) turn it on, and enjoy. There are other good entry level projectors out there, including Epson's Home 10, and InFocus's Screenplay 4805, but none so immediately impressed me as this hot little BenQ model.

1:12 PM

Panasonic PT-AE700U Review

Panasonic PT-AE700U Multimedia Projector

Sets new performance levels for affordable front-screen projection. Zoom lens, digital iris and 16:9 shaped chips means big screen quality the way movies should be seen. Panasonic's AE-700U front projector offers Hollywood style cinema with super adjustable zoom lens.

Dynamic contrast is now 2,000:1, by far the best in its product class, so the picture is sharp and clear even in a well-lit room. In addition, the new integrated cinema quality circuitry includes a Dynamic Iris optical system that constantly adjusts the brightness and gamma characteristics in real time, so the picture is always optimal and transitions between scenes are more natural. Its innovative color correction system incorporates Cinema color Management technology to ensure faithful color reproduction. This cinema-quality integrated circuitry brings you on-screen colors just as you would see them in a movie theatre.

Setup was the easiest of any other projectors. On the front, next to the lens, is a small joystick that moves the picture around the screen in two dimensions. While it's not as sexy as a motorized lens shift, it's significantly simpler and more effective. With a twist, it locks into place. Panasonic calls this a shift lever. I have a shift lever in my car, but it does something different. Controls for the focus and zoom are on the lens, and they offer fine control for the last dimension of setup. This is the home-theater-installation version of Occam's razor.

Features of the Panasonic PT-AE700U include:

Type - LCD Projector
Display Technology - TFT Active Matrix
Image Brightness - 1000 ANSI lumens
Contrast Ratio - 2000:1
Platform - PC
Form Factor - Portable
Max Resolution (Native) - 1280 x 720
Max Resolution (Interpolated) - 1920 x 1080
Image Size (Diagonal) - 40 in. - 200 in.
Image Aspect Ratio - 16:9 (Wide Screen)
Screen Distance - 3.9 ft. - 40.7 ft.
Synchronization Range Horizontal - 30 - 70 kHz
Synchronization Range Vertical - 50 - 87 Hz
Color Support - 24-bit (16.7M colors)
Operation Noise - 26 dB
Front Panel Controls - Keypad
Video Input - 15 Pin D-Sub VGA / 4 Pin - Mini DIN (S-Video) / Composite Video / Component Video / HDMI x 1
Lamp Type - UHM
Light Source Power - 130W UHM
Lens Shift - Horizontal / Vertical
Special Features - On Screen Menu / Keystone Correction
Projection Method - Front / Rear / Ceiling
Analog Video Format - NTSC / NTSC 4.43 / PAL / PAL 60 / PAL-M / PAL-N / SECAM
HDTV Formats - 480i / 576i / 720p / 1080i / 480p / 576p / 525i / 525p / 625i / 750p / 1125i / 625p
Dimensions:
Width - 13.2 in.
Depth - 10.6 in.
Height - 3.7 in.
Weight - 7.9 lb.

11:54 AM

Sanyo PLC-XU56 Multimedia Projector Review

Product Overview
Resolution: XGA (1024 x 768)
Display Type: LCD; 0.79” TFT Poly w/micro lens x3
Brightness: 2500 lumens
Weight: 6.2 lbs.
Contrast: 450:1
Warranty: 3 years

The Sanyo PLC-XU56 projector is an ultra-compact, fully-portable computer projector for presenters. Just a touch larger than a laptop, the PLC-XU56 weighs just six pounds and delivers true XGA picture quality in a versatile, go-anywhere system.

Special features include auto set-up with auto vertical keystone correction and auto PC adjustment, 1:1.5 wide-range zoom lens, dual input/monitor output switchable and DVI-I connections, DVI-I, progressive IC with 3-2 pulldown technology, Black Board mode for more effective presentations in rooms with dark-surfaced walls, and PIN code lock provides for settings security.

Sanyo PLC-XU56 Multimedia Projector Specifications:

Type LCD Projector
Display Technology TFT Active Matrix
Image Brightness 2500 ANSI lumens
Contrast Ratio 450:1
Platform PC • Mac
Form Factor Portable

Image
Max Resolution (Native) 1024 x 768
Max Resolution (Interpolated) 1600 x 1200 (UXGA)
Image Size (Diagonal) 40 in. - 300 in.
Image Aspect Ratio 4:3 (Standard)
Screen Distance 3.3 ft. - 25.3 ft.
Synchronization Range Horizontal 15 - 100 kHz
Synchronization Range Vertical 50 - 100 Hz
Color Support 24-bit (16.7M colors)

Technical Features
Audio Output Speaker(s) 3.5 mm Mini Jack
Operation Noise 37 dB
Remote Control Features Laser Pointer

Interfaces
Interface USB RS232C (mini DIN-8 pin)
Video Input 4 Pin - Mini DIN (S-Video) • Composite Video • DVI-I • 15 Pin D- Sub VGA (& component)

Lamp
Lamp Type UHP
Light Source Power 200W UHP
Light Source Life 2000 Hours

Other Features
Speakers Output 1 W
Special Features Keystone Correction
Projection Method Front • Rear • Ceiling

Standards
Analog Video Format NTSC • NTSC 4.43 • PAL • PAL-M • PAL-N • SECAM
HDTV Formats 720p • 1080i • 1035i

Warranty
Warranty 3 Years, 90 Days On Lamp

Dimensions
Width 11.7 in.
Depth 8.6 in.
Height 2.8 in.
Weight 6.2 lb.

11:32 AM

Optoma H31 Multimedia Projector Review

Weighing only 5 lbs, the H31 DLP Home Theater Projector from Optoma gives you a compact and stylish solution for making dazzling presentations. Featuring DarkChip2 DLP (Digital Light Processing) technology, this projector provides brightness levels of 850 Lumens and a contrast ratio of 3000:1. In addition, it offers native resolutions of up to 854x480 pixels and compressed SXGA resolutions of up to 1280x1024 pixels. The H31 boasts a pixelworks scaler and deinterlacer for optimal video processing, and an adjustable color matrix that allows for reds, greens and blues to be independently controlled. Packed with high-end features like keystone correction, six-segment color wheel and a remote control, the H31 Home Theater Projector gives you bright, crisp images to make your content come alive, and help you present like a pro.

Key Features
Type: DLP Projector
Display Technology: DLP
Image Brightness: 850 ANSI lumens
Contrast Ratio: 3000:1
Platform: PC • Mac
Form Factor: Portable

Image
Native Resolution: 854x480
Max Resolution (Interpolated): 1280 x 1024 (SXGA)
Image Size (Diagonal): 28 in. - 304 in.
Image Aspect Ratio: 16:9 (Wide Screen)
Screen Distance: 3.9 ft. - 39.4 ft.
Synchronization Range Horizontal: 15.75 - 68.7 kHz
Synchronization Range Vertical: 43 - 85 Hz
Color Support: 24-bit (16.7M colors)

Technical Features
Operation Noise: 30 dB
Front Panel Controls: Keypad

Interfaces
Interface: Serial (RS232) • Infrared
Video Input: 4 Pin - Mini DIN (S-Video) • Composite Video • Component Video • DVI-I

Lamp
Lamp Type: P-VIP
Light Source Power: 200W P-VIP
Light Source Life: 2000 Hours

Standards
Analog Video Format: NTSC 3.58 • NTSC 4.43 • PAL-B • PAL-D • PAL-G • PAL-H • PAL-I • PAL-M • PAL-N • SECAM B • SECAM D • SECAM G • SECAM K1 • SECAM L • NTSCM
HDTV Formats: 480i • 576i • 720p • 1080i • 480p • 576p

Other Features
Special Features: On Screen Menu • Keystone Correction
Projection Method: Front • Rear • Ceiling

Warranty
Warranty 2 Years, 90 Days On Lamp

Dimensions
Width 10.7 in.
Depth 8.3 in.
Height 3.4 in.
Weight 5 lb.

Source: www.shopping.com

11:46 AM

The Right Projector Screen Can Save You Money!

At LCDProjectorCenter.com we concentrate very much on lcd projectors, so why am I writing about projector screens? Quite simple really. Buying your lcd projector in isolation from the screen without considering how they work together is likely to cost you more and give you less than perfect results.

How can picking the right projector screen save you money?

One of the biggest challenges when choosing an lcd projector is getting the right brightness for the room you are going to be using it in. For home use you can usually darken the room. This means you can buy a cheap lcd projector, often saving many hundreds, if not thousands, of dollars.

But often darkening the room significantly is neither possible nor desirable. Buying a higher specification projector will give you a brighter image, but it's probably cheaper to buy a high gain projector screen. The quality lcd projector may cost you a thousand dollars more than a dimmer model, whilst quality projector screens that enhance the image brightness and clarity are only a few hundred dollars more.

Projector Brightness and Screen Gain

The brightness of an lcd projector is given in ansi lumens. Typical values for home theater and business presentation use are 500 to 3000. The higher the number, the brighter the picture will be. At the low end a darkened room is essential, whilst at the very top end acceptable results are possible with higher light levels. The current generation of home use projectors are typically in the 1000-1500 range.

The gain of a projector screen is the increase in brightness of the image produced compared to a flat matt white screen. This is given as a simple number, eg 1, 1.5, 2 etc. A gain of 1 means the image is the same brightness as on a flat matt white surface, whereas 2 means the image is twice as bright.

As an example, if you decide you need about 1500 lumen to get an acceptable quality picture, you could buy a projector with that rating and worry about the screen later. Or you could buy a cheaper 1000 lumen model and match it to a projector screen with a gain of 1.5. This would give you an effective image brightness of 1500 lumen at a reduced cost.

Very High Gain Projector Screens

Typical cheap projector screens have gains of between 1 and 1.2. Gains of 1.5 to 1.8 are achieved with high quality perlescent finishes at about double the cost. If money is no object and you need the maximum gain possible then you need a chromatically matched projector screen.

Gains of up to 4 can now be achieved with matched projectors and screens. An lcd projector only transmits 3 narrow wavelengths of light in Red, Green and Blue. A matched projector screen is covered with material that reflects only these wavelengths. Almost all of the ambient light is absorbed or scattered, so the projected image appears very much brighter.

The Downside of High Projector Screen Gain

Whilst projector screen gain might help you use a cheap lcd projector in brighter rooms than it could cope with on its own, there are 3 trade-offs. These are the viewing angle, color shifting and uneven brightness.

High gain projector screens limit the viewing angle. For a screen with a gain of 1 the picture appears high quality out to about 50 degrees from the projector. But at a gain of 1.5 that viewing angle is reduced to about 35 degrees. Over 2 and the viewing angle is down to around 25 degrees, making it much more difficult to layout your room.

Color shifting happens due to the surface properties of the higher gain screens. A true white screen will render colors accurately. By trying to manipulate the way light reflects, a high gain screen can cause a shift in some of the colors. This is rarely a reason not to buy, unless you really do need the colors to be spot on.

The biggest impact a high gain projector screen has on image quality is the change is brightness from the center of the screen to the edge. There can be up to 30% difference at gains over 2. This is usually not too much of a problem, but it does become far more noticable the higher the viewing angle.

Conclusion

A little research and a bit of leg work could help you make great savings. Treat the projector screen as an integral part of your system and buy it together with your projector. Visit stores and insist on demonstrations with a variety of lcd projector and screen combinations.

Choosing a good quality, moderate gain (1.4-1.6) projector screen can decrease the cost and increase the performance of your system. A cheap lcd projector can produce a bright, clear image at higher than expected light levels. So whilst your projector screen may cost more, overall you save.

About the Author
LCDProjectorCenter.com brings together all the latest news and reviews from the world of LCD Projectors. Research your home theater or business presentation LCD Projector at LCDProjectorCenter.com

11:18 AM

World's First Truly Automatic Projectors: NEC LT30, LT35

NEC Introduces Automatic Projectors That Include Auto Focus, Auto Keystone Correction, Automatic Image Optimization and Automatic Start/Shut Down

CHICAGO, Oct. 19 /PRNewswire-FirstCall/ --
NEC, a leader in projectors and plasma displays, announces the world's first truly automatic projectors, the LT30 and LT35. Both NEC digital projectors are smaller than an 8 1/2" x 11" sheet of paper and weigh less than five pounds, but boast a brightness of a much larger projector. Virtually everything on these projectors is automatic, including start-up, focus, keystone correction, AutoSense(TM) and even cool down. These technological innovations are all included on the NEC LT30/35 to make presenting easier for the user and to protect the life of the lamp.

"It is a privilege to present the world's first automatic projectors," said David Woolf, vice president of marketing, NEC. "There are no other projectors like this out there -- this is truly an industry first. We expect great things from these little powerhouses!"

Truly Automatic

The NEC LT30 and LT35 DLP(TM) projectors feature a full set of automatic innovations which help to alleviate public speaking worry in the presenter's mind. First, the automatic focus instantly provides a sharp image without the touch of a button via a distance sensor located in the front of the projector. Also, if the projector is set up at a steep offset angle to the screen, the automatic keystone correction instantly recognizes this and corrects the angle to project a perfectly square image. The LT30/35 also features automatic start-up and shut down enabling the projector to be turned on and off from a wall light-switch or power strip. The projectors also feature direct power off which is a unique lamp saver technology that protects the lamp in the event of power interruption. Built-in sensors protect the lamp and projector from overheating, increasing the lamp life. Finally, NEC's AutoSense(TM) technology intuitively syncs the projector with computer signals and features one-touch image optimization which provides better clarity and greater detail of high resolution images.

Adaptable for Any Application

At only 4.4 pounds, these projectors are portable enough to be moved from room to room or to drop into your carry-on bag for the plane. Even at this small size, the LT30 and LT35 boast an unprecedented brightness at 2,600 lumens and 3,000 lumens, respectively. Also, built-in wall color correction allows you to properly display an image even on non-white surfaces. These high resolution, XGA 1024x768 native resolution projectors feature advanced video processing including 3-2/2-2 pull down which provides error free interpolation for moving video resulting in a smooth image with greater clarity and detail.

Pricing and Availability

The NEC LT30 and LT35 will be available November, 2005 for $1,795* and $2,195, respectively. The projectors come standard with NEC's comprehensive three-year limited warranty on parts and one-year limited warranty on labor, along with InstaCare(SM), which provides quick repair and/or replacement, and optional EcoCare(SM) recycling coverage. The lamp is covered by a one-year or 500-hour limited warranty.

Coming Soon: The NEC NP2000 and NP1000

NEC will be releasing the NP2000 and NP1000 digital installation projectors in spring, 2006. These networked projectors can be used wired or wirelessly, feature vertical and horizontal lens shift and have a full line of optional lenses available. These XGA projectors provide a suite of networking technologies and asset management features. Users can wirelessly connect from a computer to one projector, multiple projectors and other computers or even access another person's computer using the Image Express Utility(TM) that ships with the projector. Users can even keep their computers at their desks and present in another room via a USB mouse connected to the projector that can control all of the functions of the computer. Remote diagnostics also enable the user to monitor and make adjustments to the projector via the network from a remote location. The NP2000 and NP1000 are incredibly bright at 4000 and 3500 lumens, respectively. Similar to the LT30/35, the NP2000/1000 also offers lamp saver technologies with heat sensor and direct power off to prolong the life of the projector. Pricing to be determined.

NEC Solutions America, Visual Systems Division, is the second largest provider of professional grade plasmas and projectors in North America. A Global 150 technology leader with over $40 billion in revenue, NEC Corporation delivers projectors and plasma displays with crystal clear images every time -- because it's your image. For more information, please visit http://www.necvisualsystems.com or call 1-800-NEC-INFO.

About NEC Solutions (America), Inc.

NEC Solutions (America), Inc. is a premier provider of integrated solutions for the Connected Enterprise in North America. As an affiliate of NEC Corporation (Nasdaq: NIPNY - News; FTSE: 6701q.1), NEC Solutions America taps into a global resource network to help clients leverage technology to achieve a competitive edge. From corporate performance management and biometric security solutions to digital cinema and in-theatre advertising systems, visual displays and server solutions, the expertise is delivered with the personal attention needed to address individual situations. With headquarters in Rancho Cordova, California, NEC Solutions America serves a wide range of markets, including the healthcare and public safety, financial services, cinema, retail and manufacturing markets. Information regarding NEC Solutions America can be found at http://www.necsam.com .

*All prices listed are Estimated Street Price (ESP) and may vary.
source: yahoo biz

3:00 AM

InFocus LP250 Projector Review

Give your presentations a major upgrade with the LP250. Just plug one of these versatile and affordable projectors into your computer, VCR, DVD, or digital camera, and your presentation possibilities are suddenly endless. Project Websites to support your ideas. Play a movie clip for the entire room. Use a PowerPoint presentation to persuade your audience.

FEATURES

Versatile applications — carry it from room to room, put it on a cart, or mount it on the ceiling
Great return on investment — it pays for itself in less than one year
Abundant connections — plug it into your computer, VCR, DVD, or digital camera
Active monitor loop-through — view your computer monitor even when the projector is off
Flexible image placement — even in small rooms, images fit the screen perfectly
ProjectorManager™ software — for easy operation from your computer

SPECIFICATIONS

GENERAL

Aspect Ratio: 4:3 standard; 16:9 wide

Brightness : 1100 ANSI lumens

Contrast Ratio: 400:1 full on/full off

Data Compatibility: SXGA, XGA, SVGA, VGA, 1152 and Macintosh®

Display: .7” Poly Silicon TFT LCD

Image Size (diagonal) 1.0 m – 5.1 m

Light Source: 150-Watt UHP, 2000 hours

Native Resolution: XGA (1024x768)

Projection Lens: Zoom lens with manual focus and manual zoom adjust

Projection Methods: Front, rear, ceiling

Throw Ratio 1.8 – 2.15:1

Minimum Projection Distance 1.46 m

Video Compatibility: NTSC, PAL, SECAM, SDTV, EDTV

SIZE

Dimensions: 10.0”(W) x 12.0” (L) x 3.7” (H)/ 25.5cm x 30.5cm x 9.5cm

Weight: 5.78 lbs/ 2.6kg

INPUT

Control : Projector keypad, IR remote control, wired control through USB

Digital Keystone + 15 degrees vertical correction; data/video

Input Sources: Computer (VGA 15 pin HDDSUB female); mouse (PS/2 6-pin mini DIN, USB); video (S-Video 6-pin mini DIN and composite video RCA); audio (3.5mm mini jack)

OUTPUT

Brightness: 1100 max ANSI lumens

Number of Colors : 16.7 million colors

OTHER

H-Sync Range: 15-100kHz

Lamp Warranty: 90 days or 500 hours, whichever comes first

Operating Temperature 5– 40 degrees C at sea level

Power Consumption: 211W (typical); 233W (maximum)

Power Supply: 100V-240V at 50-60Hz

Ships Standard with: Wireless Conductor™ remote control (including batteries), power cord (national and regional variants), VGA computer cable, composite video cables, audio cable, soft carry case, lens cap, SCART adapter (EMEA only), projector system CD (includes multi-language projector User Guide, projector Quick Start Card, ProjectorManager™ control software, ProjectorManager UG, ProjectorManager installation guide, and URL/Service Information/Accessories after market), Quick Start Card (printed version), User Guide (printed version)

V-Sync Range: 43-130Hz

Warranty: Two-year standard warranty on parts and labor

Source: www.projectorbuyingguide.com

1:45 AM

Home theater projector :the ultimate in home entertainment

If you have been salivating for a true home theater experience a projector beats any of the new fangled television technologies any time.

Think about it , you can get images up to 120 inches whereas the largest plasmas or rear projection TVs are only 70 inches in diagonal length. Furthermore, these huge television cost an exorbitant amount ranging from $5000 to $10,000.

Compare them to budget projector models which sells for less than $1,500. Now's really a good time to consider them. They used to cost many thousands of dollars and prices have since fallen.

Now the market is in favor of new projector technologies such as LCD projectors or DLP projectors which utilize compact digital image chips which have brighter light output than CRT technologies. Now there's no need to completely see your movie in total darkness. A dimly lit room will do just as fine.

The older CRT technology were heavier at over 100 pounds. These new generation of projectors are compact and light. They weigh from 5 to 15 pounds. You can carry the lighter ones around. There's no need to rush home to watch your live sports programme. You can just simply bring it wherever you are, for example in a friend's house. A compact projector is a great idea if you have several houses since there's no need to buy a projector for every home. One projector will do simply fine.

Their small size is a boon. They may either be placed on a coffee table or be mounted on a ceiling. Imagine the mammoth hulk of a projection TV taking up your previous living room space which otherwise could have been used in more better ways.

New projectors boast an array of connectivity options which regular television sets lack. You can hook it up to your PC enabling you to surf super sized web pages, watch slide show of your digital camera photos or play computer games.

Nowadays you have the option of either having a projection screen or simply using the wall to project the image on.

Setting up is easy and new projectors offer simpler solution. Normally your entertainment console consisting of all the various components such as DVD Player, Cable set top box and other AV components will be in front of the living room while the projector will be mounted at the back of the room. So how do you reconcile the difference in location for all these gizmos? You either had to move all the components back or simply lay cables from the various sources to the projector behind.

Now there's all in one home theater with speakers and DVD player thrown in together in one unit. There's no need to worry about cables snaking from one end of the room to the other, not to mention the headache of setting up the projector system.

Another alternative would be wireless projector allowing you to bring your projector from room to room without worrying about wires and cables.

About the Author
The writer is the webmaster of Buy Home Theater which covers the various aspects about buying a home theater

1:31 AM

LCD v DLP projectors

If you've been thinking about buying a home theater projector and read reviews or done a little bit of research, you'll be aware that there are two technologies competing for the contents of your wallet.

Both LCD and DLP are used in projectors suitable for home theaters, but they work in quite different ways and produce slightly different results. If you ask around - particularly in electronics stores, you're likely to be provided with a mass of information that's confusing and often just plain wrong. So here, in an effort to clear the fog surrounding projectors, is our guide to LCD v DLP.

LCD

LCD projectors have three separate LCD panels, one for red, one for green, and one for blue components of the image being processed by the projector. As light passess through the LCD panels, individual pixels (or picture elements) can be either opened or closed to either allow light to pass through or be filtered out. In this way the light is modulated and an image projected on to the screen.

LCD projectors have historically had three main advantages over DLP. They produce more accurate colors (due to the three separate LCD panels), they produce a slightly sharper image (although this is as good as undetectable when watching movies) and they are more light-efficient, which means they produce brighter images using less power.

However, LCD projectors also have some disadvantages, although as the technology improves these are becoming less and less relevant. The first of these is pixelation, or what's known as the screen door effect. This means that sometimes you can see the individual pixels and it looks as though you are viewing the image through a 'screendoor.' The second historic disadvantage of LCD v DLP is that LCD doesn't produce absolute black, which means that contrast is less than you would get with DLP.

However, the advent of higher resoltion LCD projectors (particularly 'HD-ready' projectors which have a horizontal resolution of 768 pixels or greater) means that pixelation is less of a problem than it used to be. And the improved ability of LCDs to produce high-contrast images is also allowing them to be taken more seriously by home theater enthusiasts.

DLP

Digital Light Processing (DLP) is a technology developed by Texas Instruments and it works by projecting light from the projector's lamp onto a DLP chip, made up of thousands of tiny mirrors. Each mirror represents a single pixel and directs the light projected onto it either into the lens path to turn the pixel on or away from it to turn it off. Most DLP projectors have only one chip, so in order to reproduce color, a color wheel consisting of red, green, blue and sometimes, white filters is used. The wheel spins between the lamp and the chip and changes the color of the light hitting the chip from red, to green, blue. Each mirror on the DLP chip tilts towards or away from the lens path depending on how much of a particular colour light is required for that pixel at any given instant.

The key advantages DLP has in the LCD v DLP debate is that DLP projectors tend to be smaller and lighter, have better contrast, and don't suffer the same pixelation problems as LCD projectors. There is one problem that some users report with DLP projectors, although it appears to only affect a very small number of people. Because of the way DLP works, at any given instant, the image on screen is either red, green, or blue. However, the images change so quickly, that the human eye doesn't detect this and your brain puts the red, green and blue images together to make a complete frame of video. Unfortunately, some people can see the individual colours, and others can detect them enough to cause eye-strain and headaches. However, technology has improved significantly with the introduction of six-color wheels and faster rotation speeds. The rainbow effect should be a problem for even fewer people. The best way to find out if you're affected is to try out a DLP projector, perhaps by hiring one, before you buy.

Technology in both LCD and DLP projectors is improving all the time. However, at the time of writing DLP still has a slight edge in the home theater market.

About the Author
Kenny Hemphill is the editor and publisher of The HDTV Tuner

1:25 AM

Consumer Electronic Information: The Basics of the DLP Projector

Projectors have come a long way in the past few decades. The desktop fossils that were once used to show home movies or classroom filmstrips are a thing of the past. With today's technology, you can now experience a projected movie that emulates a full-blown theater flick, without the time, effort and hassle of standing in line at the local cinema.

DLP projectors - also known as Digital Light Processing projectors - have brought the proverbial silver screen to the home front. The fact that some theaters actually use this type of technology for feature movie projection makes this truer than you might imagine. After being digitally converted and placed on an optical disk - much in the same way as DVD technology is produced - the images are fed into the projector and sent to the movie screen. The main difference is that DLP projectors offer a high definition experience, as opposed to that of a DVD. The result is a picture that very nearly rivals the quality of a 70mm projection, but without the imperfections.

The color accuracy of the DLP system is outstanding, with an end result that beats LCD technology. Some of the advantages that make a DLP the projector of choice are its low power consumption, compactness, micro-mirror construction (which is responsible for the high level screen resolution), high contrast and brightness. All in all, this is the closest that anyone can come to having a bona fide cinema within the confines of their home.

With every set of pros, you'll always find some cons lurking in the shadows. Such is the case with the DLP projector. For those who are particularly sensitive to certain visual effects, the DLP design produces a type of "rainbow effect," which could serve as a distraction when looking from one side of the screen to the other during viewing. This will play out as a brief splash of colors, which is simply a result of the type of technology that's used in the production of the DLP. Most people don't even notice this color display, but those who are in tune to that sort of thing may see it as an annoyance.

While this is also true for LCD projectors, consumers might be disappointed to know that DLP projectors need to have their light source changed after every 1,000 to 2,000 viewing hours. All in all, though, this is nothing new and, when you consider the higher quality that this type of system offers, it shouldn't be seen as much of an inconvenience at all.

Perhaps the most inhibitive aspect to the acquisition of a home theater system, such as the DLP, is that the cost will typically fall within the range of $5,000 to $10,000 for the mid-range systems, once you purchase everything that you'll need in order to complete the set-up. In addition to that, you'll have to consider the cost of the rest of your home theater system, since these figures only factor in the DLP expenses.

For those who can afford to do so, the DLP projector is an excellent investment, despite its few downfalls. While no projection system is perfect, DLP is currently the most popular set-up on the market and provides a powerful theater experience for those who aren't inhibited by space or finances.

About the Author
******* (c) 2005 Simon Canfield - All Rights Reserved
Simon Canfield is a hi-tech enthusiast and freelance author.
AllAboutHeadPhones.com BigScreenTVsecrets.com *******

7:40 AM

Before You Buy An LCD Projector

Buying an LCD projector is not an insignificant investment, so you'll want to think carefully about how you're going to use the projector so you can match the features you need with the best price point. For instance, an LCD projector's brightness is a key buying factor, but if you're not planning to frequently give presentations in large conference rooms or classrooms, you may not need high performance in this area. These key buying factors will help you choose an LCD projector.

LCD Projector Resolution

SVGA (800 x 600), XGA (1024 x 768), SXGA (1280 x 1024), or UXGA (1600 x 1200)? The higher the projector's resolution, the higher the price. If you will use your LCD projector mainly for PowerPoint presentations, the SVGA resolution will be fine, while XGA is a good choice for displaying numerical data. You'll only need the higher resolution LCD projectors if you need fine details to be accurately displayed.

LCD Projector Brightness

The higher the ANSI lumens rating, the brighter the LCD projector's light output. Projectors of less than 1000 lumens may not put out enough light for your needs. Projectors of 1000-2000 lumens put out enough light for normal business or classroom situations, while projectors of 2000-3000 lumens produce enough light to illuminate images without washout in large conference rooms and classrooms.

LCD Projector Contrast

Projector contrast is expressed as a ratio between the brightest and darkest areas of the image. Look for LCD projectors with contrast ratios of 400:1 or higher so that graphics and video images are clear. You'll want to choose an LCD projector with a very high contrast ratio if you plan to frequently project images with the lights on.

LCD Projector Weight

Projector weight is a portability issue; if you're going to be carrying the projector around a lot, making presentations in different locations, the lighter the better. There are now many LCD projectors available that weigh less than 5 pounds, which can lighten your load considerably if you're a mobile presenter. However, generally, the lighter the projector the more it costs.

LCD Projector Connectivity

When you buy an LCD projector, you'll choose one that connects with the computer you use, of course. But will you always use the same computer? You may need a separate connector cable or adapter in some cases. Check as well to see if the LCD projector has multiple computer ports, in case you want to connect multiple computers or video sources to the projector at the same time.

LCD Projector Lamp Life

Another factor you may want to consider when buying an LCD projector is the listed lamp life, as replacement lamps cost hundreds of dollars. A listed lamp life of 2000 hours is excellent. Some projectors come with mode choices, such as "eco-mode" that allow extended lamp life, and cut down on operating costs

From Susan Ward

7:13 AM

How to choose a video or data projector

The most important specifications

Resolution measures the amount of detail that can be seen in an image. For computers, resolution is expressed in the number of pixels down and across the screen, and it's important that your projector is capable of matching the resolution of your computer system. VGA requires 640 x 480 resolution, S-VGA 800 x 600, XGA 1024 x 768. Standard 13" Macintosh monitors use 640 x 480 resolution, but to show a 17" Mac monitor full-screen requires 832 x 624. Engineering workstations can require even higher resolutions. For this reason, the resolutions of three-tube projection systems are normally expressed in scan rate ranges, to allow you to match them to the workstation or specialized graphics card you may use.

For video, resolution is expressed as the number of lines per inch visible on a test pattern. The video resolution specification (which is not the same as the horizontal computer resolution—and actually is determined more by the electronics of the projector than by the LCD panel) can serve as an overall indication of the video quality you can expect.

Brightness. As you start to compare LCD projectors, you'll need to know the brightness in ANSI lumens (the current ratings standard, and, please note, not comparable to "lumens" expressed in non-ANSI terms). As a rough guide, a rating of 600 - 800 ANSI lumens works well with a 100" to 150" diagonal screen with lights dimmed, but you'll want at least 1,000 ANSI lumens when you go to larger screens and 1,500 or more if you want to project in bright lighting conditions. Your best bet, of course, is to ask your sales rep to demo the LCD projector under conditions typical to what you'll see.

Size and weight. There's often a trade off between small size and image quality. If you depend on a sales force to voluntarily take your projector and program from call to call, you may find an ultra-compact LCD is your best bet, as an expensive multimedia production does no good sitting in a closet or a car trunk. Others may find, however, that a 12 to 15 pound LCD projector offers a better combination of brightness and price, yet is still very portable. Naturally, if you're going to put the projector on a cart or a ceiling mount, size is much less important.

Your video source. Do you need to show S-video or just standard composite video? Will you take the unit overseas (and thus need the ability to accept PAL or SECAM signals and overseas power)? What's the resolution of the video? Projectors that produce higher video resolutions produce sharper, cleaner images.

New digital video systems are here, and many projectors now include component video inputs to allow direct connection to DVD players, plus digital TV tuners and VCRs when they are available. It's important to note that any projector, monitor or TV will be able to display digital TV signals. If you want to take advantage of the HDTV clarity, however, you'll need a higher-resolution video or computer projector, and a component input will help by reducing noise. (It works by dividing the chrominance portion of the video into red, green and blue segments.) For more information about digital TV, see our digital television tech tips.

Aspect ratio is becoming important with digital TV formats as well, and it's important that your projector will display the aspect ratio of your source. Most computer and video images use a 4:3 ratio—that is, the ratio of the width of the image to its height is 4:3. But wide screen movies and HDTV formats use 16:9 and SXGA, while it will display on a 4:3 monitor, actually uses a 5:4 ratio.

Lamp type. Most LCD projectors use a metal halide or UHP source, which offer a very white light and a useful life of 750 - 2,000 hours (depending on your projector model). They typically do not burn out suddenly, but gradually grow dimmer, giving you plenty of warning that it's time for a replacement.

Contrast ratio, which measures the difference between the brightest white and darkest black your projector can produce, should be an important spec, but there seems to be a problem in how it's measured. We've done side by side comparisons between LCD projectors rated at 100:1 and 300:1 and found little or no difference in their images. We're now including contrast ratio in our catalog, but it's a good idea to take this spec with a grain of salt.

The number of colors you need, while once important, is no longer an issue. All of the LCD and other projectors United handles offer 16.7 million colors.

Useful features
Beyond the basics, you'll want to consider whether your LCD or data projector includes:

Intelligent resizing technology (also called "intelligent compression" and other names), maps high resolution computer images to a lower resolution LCD. This process works much better than plain "compression," showing the entire image at very acceptable sharpness. It works best going only one step up. Using an 800 x 600 projector you'll get very good 1024 x 768 images, but 1280 x 1024 will be noticeably fuzzy.

A direct digital video input (when used with a computer with a digital video output), will increase the quality of your projected image by eliminating the need to convert a digital RGB signal to the analog RGB accepted by most projectors and monitors.

A video line doubler (or scan doubler) increases the number of lines of vertical resolution from the 525-line standard to 1,050 lines. It does so by repeating each scan line, resulting in a sharper-looking picture. It's important to note that line doubling does not affect a projector's resolution spec, since resolution is usually specified in horizontal terms.

A zoom lens. Useful if you can't control the exact placement of the projector.

Keystone correction or lens shift corrects rectangular distortion caused positioning the projector away from the center axis of the screen. Adjustable keystone correction is a real plus, though nearly all projectors have at least a fixed correction factor which allows you to position it below the center of the screen.

Motorized focus. Allows you to walk up to the screen and focus using the remote control (for best accuracy).

Mouse control: operates your computer mouse from a wireless remote control. If your PC has a USB mouse connector, it will recognize a USB compatible mouse even if you plug it in after you've started up your computer.

On-screen pointer also operates from the remote control. Laser versions are the easiest to see (and to use).
Monitor loopthrough allows you to see your computer screen while the image is being projected.

Multiple inputs allow you to switch between more than one computer or video source.

Audio amplifier and speakers. Most projectors have a sound system, but the quality can vary (and the specifications you need to judge that quality are not normally available). Still, it's easy (and economical) enough to add a lightweight sound system for use with large groups, and if you do so, you'll have sound quality way beyond anything built into any projector.

Beyond the specifications
There are some comparisons that are very difficult to make from a spec sheet (and, at times, the measurements that specifications are based on aren't always made the same way). You'll really need to see the projector or panel demonstrated to form a judgment, especially for:

Color accuracy. Besides the number of colors, how well does the the unit handle subtle color renditions, such as flesh tones? How clean are photos or video?

Even illumination. Does the image have hot spots or a clean, even brightness from corner to corner? Is the focus consistent from center to corner?

If it's an 1024 x 768 projector, how good are the 800 x 600 and video images? Do any resolution trade-offs work for you?

Reliability. Will the projector work through a critical presentation? Does its manufacturer have a good reputation? Does it use a long-life lamp? What's the warranty? Is it UL listed?

Serviceability. How long will you have to do without your projector if it breaks? Will your dealer stand behind you if you need it for a critical meeting?

CRT vs. LCD projectors
Today there's little debate: most United customers are choosing LCD projectors no matter what the application. In general, LCD units offer major advantages in cost, serviceability and brightness, while providing very good images. Still, CRT projectors can provide better results if you'll project from computers with more than one resolution. CRTs provide better video, because they offer better color and grayscale accuracy. Though they are not as bright as LCD projectors, CRTs offer a much better range of brightness from highlights to shadows. This is the reason they appear to be brighter than their specifications suggest

Article taken from www.unitedvisual.com

6:55 AM

Computer Projectors Make for Better Presentations

Almost everyone can identify with the fear of giving a bad presentation. To make matters worse, expectations of presenters have risen drastically.

No longer are audiences satisfied with black and white slides and washed-out color images. Nowadays, visually stimulating multi-media presentations are a must to keep business audiences captivated by your message.

Fortunately, creating interesting presentations does not have to be an entirely nerve-wracking experience. One way to improve your overall presentation is by using an LCD computer projector. LCD projectors combine the functions of an LCD panel and an overhead projector into a single unit. The majority of LCD projectors are both Mac and IBM compatible and come standard with nifty features such as remote control, stereo, and video projection capabilities.

Using programs such as Microsoft PowerPoint, computer projectors let you project presentations directly from your PC. In addition, they are ideal tools for presentations that require live computer screen shots, such as demoing a web site to a group of clients or instructing employees on the uses of a particular computer program.

The type of LCD projector that you choose will greatly depend on the room settings that you plan to use the projector in. Generally speaking, the brighter the room, the brighter the projector lamp that you will require. Lamp brightness is calculated in ANSI lumens, an industry standard measurement. You'll want a lamp with a minimum of 300 ANSI lumens for presentations that take place in relatively dark rooms. However, don't settle for less than 500 ANSI lumens (750 if its a large auditorium) if you need to keep the room well-lit so that the audience can take notes.

Another factor to consider is resolution. This refers to the number of screen pixels that can be displayed by the LCD system. In order to get the sharpest image, you'll need to choose a system that can project the highest resolution that your computer can support. Only a few years ago VGA (640x480 pixels) was the standard. Today, many laptops now feature SVGA (800x600) and XGA (1024x768) as their standard resolutions. Many projectors can also project higher or lower resolutions by expanding or compressing the picture, but these methods will somewhat degrade the image.

Finally, portability should be at the top of your checklist if you plan to take your presentations on the road. LCD computer projectors currently range from just under eight lbs. to as much as 60 lbs. If you're a road warrior, I suggest that you stick to a projector of less than 15 lbs. No one wants to be dragged down by an LCD projector while running to their connecting flight.

LCD projector prices range from $2,000 for lowest-end models to $20,000 plus for the latest and greatest. Expect to pay around $6,000-$8,000 for a portable LCD projector that supports true SVGA resolution.

BuyerZone.com Editorial Staff

6:32 AM