Originally Posted by Ron Jones
While some of those DLPs with a clear (white) segment in the color wheel my produce high lumens readings for a 100% white test pattern they frequently have relatively low color lumens and the overall image will appear dimmer than with the VW1000 when viewing normal video.
Having a slight drop in gain or saturation does not suddenly make the image look a ton darker (a tiny bit), because if this were true then most all the "brighter" modes in almost all of our projectors would be completely useless for ambient light, and they are far from that.
There are several cheap DLP's with fairly accurate color that will easily beat the brightness of the vw1000es (perceived and measured), as long as you calibrate them correctly with the proper minor concessions. The light paths on todays DLP's are as different as the CPU's on our video cards were 10 years ago. When 3D came out, they dumped tons of money into light path research and development. Personally, some of these gamuts on these cheap DLP's are more accurate than the JVC RS-45's post-calibrated gamut. You do not instantly get very under-saturated or low gain if you calibrate it correctly, not unless you try to reach that last 10% to 20% of the lumens. You can still exceed 2500 lumens in some cases with a pretty darn accurate looking image.
As on example, the Benq sh910 and Optoma eh505 or eh501 can do pretty nice color at around 3000 lumens from all the graphs I've seen (gamut + gray-scale). They won't do well in dark scenes, but otherwise the color will look fine. The big problem isn't the saturation, it's the contrast in dark scenes. Even the Viewsonic pjd7820hd does decent color at around 2500-3000 lumens. Heck even my old Pro8200 with an RGBRGBY (7-seg wheel) can put out 1500 lumens best mode and 1800 near best mode (so close you can barely see a difference). Many of them have poor looking presets, but that is a different issue.
Also, if you compare a projector like the Optoma hd131xe (RGBCYW color wheel) to the Benq w1070 (RGBRGB), the Optoma best mode holds almost the same % against its brightest mode as the Benq w1070 (no significant difference), despite the white segment in the Optoma's color wheel. Now if you look at the SAT Tracking and the overall gamut on the Optoma, it's not quite as good, but it still has pretty good color.
This new "white lumens brightness" rating appears to be another marketing gimmick because the MFR's are already abusing it, and it has little to nothing to do with how many best-mode lumens a calibrated image will give (nor will it ever), because the MFR's cheat the number just like they cheat all the other numbers.Edited by coderguy - 9/16/13 at 2:29am