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Wednesday 25.11.2009 / 04:55 PM

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	Sony QUALIA 004
Picture
User rating	Rate this product
Lowest U.S. price
Lowest UK price	�2,189.97
Type	Other
Resolution	1080p (1920x1080)
Aspect ratio	16:9
Lens zoom	?
Min image	?
Max image	?
Contrast	?
Brightness	1600 ANSI lumens
Lamp life	?
Lens shift type	?
Keystone correction	?
HDMI inputs	1
Component inputs	1
DVI inputs	1
VGA input	No
VGA-SCART	?
SCART	?
S-Video	Yes
Composite	?
Speakers	?
Noise	2,4dB
Power consumption	980 W
Width	598mm
Height	206mm
Depth	753mm
Weight	40kg
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Back to Video projectors

Display technology type
Type refers to the technique the projector uses to generate the image. Possible options are CRT, LCoS (Liquid Crystal on Silicon), DLP (Digital Light Processing), and LCD (Liquid Crystal Display). of which the last two are the most common solutions today. LCD is generally thought to be the better choice for data projision, whilst DLP is preferred in video projision use. In practice, however, today the two competing types are very close to each other in quality.
Native resolution
Resolution refers to the amount of horizontal and vertical pixels the projector uses to generate the image, i.e. the physical number of columns and rows of pixels creating the display. As a result of fixed display resolution all inputed video must be scaled to match the the resolution of the projector. Common display resolutions for a portable projector include SVGA (800�600 pixels), XGA (1024�768 pixels), 720p (1280�720 pixels), and 1080p (1920�1080 pixels).
Native aspect ratio
Aspect ratio is the width to height ratio of the projected image. Most often the aspect ratio is either 16:9 (widescreen) or 4:3. See more here
Lens zoom factor
Most projectors have a zoom lens, allowing for the adjustment of the image size without the need to move the projector. Zoom factor expresses how greatly you can affect the image size without moving the projector, e.g. if the zoom factor is 2x you can adjust the image size by 100%. The zoom lens can be either manually operated or motorized ('power zoom').
Minimum image size
The minumum size of the projected image, in inches, refers to the smallest diagonal measurement with which the projector will work.
Maximum image size
The maximum size of the projected image, in inches, refers to the largest diagonal measurement with which the projector will work.
Contrast
Contrast is the ratio between the brightest and darkest areas of the image. Contrast is given ast a ratio, e.g. 800:1, and the higher the number the better the contrast. Room light has a great effect on contrast ratios, so if you plan to use projector in a lighted room, it is a good idea to pay attention to the contrast ratio. On some projector this is the dynamic contrast ratio, in which case the brightness of the picture is dynamically adjusted depending on the overall brightness of the scene.
Brightness
The power of a projector's light output is measured as ANSI lumens (or just "lumens" for short). The brighter the projector's light, the higher the ANSI lumen rating -- and usually the higher the cost. Naturally, the brighter the room, the brighter the lamp you will need -- under 1000 lumens is adequate only in a dark room, but e.g. in a class room or a conference room you already need 1000-2000 lumens.
Lamp life
Lamp life refers to how long the lamp can be on until it starts to become too dim for adequate use. The value is given as hours (h). Lamps on't usually just burn out suddenly, but rather dim gradually beyond usability. The poorest halogen lamps may only last for a few hunderd hours, but most lamps in use today last for a thousan hour or more. For end user, the lamp life is of great interest, as lamps are very expensive to replace.
Lens shift type
Lens shift makes it possible to move the lens up or down, left or right, while keeping the projector stationary. This way you can relocate the projected image on the wall without the need to move the projector, making it easier to place the projector to desired location. The lens shift can be operated either manually or, in some models, electronically (motorized).
Keystone correction
Keystoning occurs when a projector is aligned non-perpendicularly to a screen, resulting in an image that looksa trapezoidal rather than square. The mis-alignment can be reduced (or removed) by keystone correction, which alters the projected image to countermeasure the misalignment in shape. The correction can be done either optically (with lenses) or digitally using digital image processing.
Number of HDMI inputs
HDMI is a completely digital interfacing standard for transferring digital video and audio between electronic devices. Designed primarily with high definition displays in mind, HDMI offers a solid means of transportation for video resolutions up to 1080p. For more info please see here.
Number of component inputs
Of the analog input alternatives, component video offers the best quality. If the digital alternatives (HDMI, DVI) are not options, then component video is the way to go. For more info please see here.
VGA input (D-sub)
A VGA connector (aka D-sub 15) is an analog three-row 15 pin DE-15 connector commonly used in video cards of computers, and thus it is often an easy way to connected a computer source to the projector.
RGB SCART input from VGA
VGA-SCART means that the projector can handle RGB signal input from the VGA port.
SCART input
SCART is an old analog connector/cable, which is commonly used in Europe. It can transfer both video and (stereo) sound. Supported videos are one or all of the following: composite, RGB, and S-Video.
S-Video input
S-Video is an analog video transmission standard which uses a mini-DIN connector to deliver Luminance and Chrominance information on separate subchannels. Quality-wise S-video stands somewhere beteeen composite video and component video, More information in glossary.
Composite input
Composite video transfers the video signal over a single RCA cable. Compressing all the information in to a single cable leads to losses in quality and leaves much room for improvement. Thus, altough composite is very commonly available, other connection methods should be preferred if available. For more info about composite please check out this page.
Noise level
Noise level indicates how loud the projector is, in decibels (dB). The noise is most commonly created by the fan(s) that prevent the projector from overheating.
Power consumption (in use)
Power consumption expresses in watts (W), how much energy the unit uses to operate.