Elite Screens VMAX200XWV PLUS3, Руководство по эксплуатации продукта

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Screen Light Absorbing Trim (border)
The screen has a velour type, black, light absorbing beveled surface that mounts on the frame. The black area measured
2.5 inches wide, on all sides. Interestingly, their website describes the border as being 3 inches, not 2.5, an error Elite
should correct. I don't recall if the original version of this screen had a wider border. To put Elite's 2.5 inch border in
perspective, the Carada Criterion's border is 3 and 3/8ths wide all the way around. (Carada offers a 2nd, slightly less
expensive border that is about 2 inches wide.)
2.5 inches of black border makes for a good looking screen, and provides more than enough border at the top and bottom
to deal with the light overshoot (top and bottom) that many of the new DLP home theater projectors have (or widescreen
business projectors for that matter) that feature the relatively new 1280x768 resolution Darkchip2 DLP chip. (That chip
allows Texas Instruments to use one chip for typical home theater (1280x720) and for business WXGA (1280x768), so that
the full 768 vertical can be displayed. Some of the popular home theater projectors that use this chipset include the
Optoma HD72 and the Mitsubishi HC3000. Almost all the widescreen business DLP projectors also use that chipset. I
should note that those needing a brighter solution for their home, due to ambient light, might consider one of those bright
business projectors.
The downside of using the 1280x768 chip, is that when you set up your projector to fill a 16:9 screen left to right - 1280
across, you end up with a total of 48 pixels vertically that will overshoot the screen surface, (768-720=48) and hit the
frame (24 pixels at the top, 24 at the bottom).
The Elite's black velour easily absorbs the light from this overshoot, and you really have to be looking for it to spot the light
hitting the screen border. If you do the computations, for a 100" diagonal screen, the overshoot works out to about 1.5
inches at the top and at the bottom, so the 2.5 inch border is more than enough, and would do the job even with Elite's
huge 150" diagonal screen.
Projector Screen Image Properties - Gain
I would describe the R100H1 as a light gray surface. Despite this Elite
claims a gain of 1.0. In comparing brightness with my Carada Brilliant
White (gain claimed of 1.4), the Elite screen was not quite as bright. I do
not have a viable method of measuring the actual gain of screens, but
find the gain of 1.0 to be reasonable assuming the Carada meets its 1.4
claim. If anything I suspect that the gain is slightly lower, say, 0.9.
The end result is a screen that will work well with larger screens, or some
of the less bright projectors, if you are looking for a screen that can lower
black levels, but don't want to sacrifice as much brightness as some of
the darker gray surfaces.
The image immediately to the right, shows the brightness difference
between the Carada (top) and the Elite (bottom) separated by the Elite's
velour border.
Projector Screen Image Properties - Color Accuracy
Following the same procedure above, we measured the grayscale balance at 100 IRE directly from the projector - measur-
ing R, G, and B, values. We then performed the same measurements with light reflected off of the screen. Below you can
see two images of my calibration software. The first is the RGB balance measured directly off of the projector, the second
reflected off of the screen.
From an overall color temperature change, the direct temperature measured 6654K and reflected off of the screen, 6456K,
about a 200K difference, which is very slight and easy to correct for. Essentially this Elite screen reflects back just the
slightest more red, than blue. The percentage measurements between Red and Blue, go from 99.62 (red) and 101.19
(blue) on the direct measurement off of the projector. Off of the screen, red increases slightly to 100.17 while Blue drops to
99.69.
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Product Review
R100H1: ezFrame High Contrast Gray, Fixed Projection Screen Review
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