The ViewSonic PS750W exceeded its 3,300 lumen claim, with Brightest, its brightest mode, coming in at 4,463. Impressive! Most projectors measure between 0% and 25% short of their claim, with Epsons tending to be the exception. I didn't expect this ViewSonic to measure over, but did notice upon powering up that it seemed brighter than 3,300 lumens, which is still quite bright. Now, keep in mind that the 4,463 lumens belong to Brightest Mode, which is only a "break glass in case of emergency" mode, like we discussed on the previous page. The color is just not good enough to be your regular mode, and should only be used to combat some serious ambient light.
The second brightest mode is Standard, which is the PS750W's best mode. That one measured in at a whopping 3,709 – that's plenty bright for most classroom environments. Even sRGB, which measured at 3,372, will suffice in the face of ambient light. Movie Mode, on the other hand, should be reserved for a more darkened room (lights off, windows covered if you can). 2,341 lumens is still pretty bright, but will be washed out if hit dead on with light from the window, or even from the side. For most applications, I still say you'll want to use that Standard Mode.
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