BenQ W1070 3D Brightness
1700 calibrated lumens at mid-point on the zoom lens, is going to make this one of the brightest 1080p 3D capable home theater projectors on the market. Oh, the Epson 3020 and 5020UB can muster up an extra 400 lumens, but that's uncalibrated. By comparison those guys are under 700 lumens calibrated!
Still, 3LCD projectors often are brighter doing 3D than similarly measured DLP projectors. Note that LCD and LCoS projectors usually have "glasses" controls (in the projector not the glasses) that can allow them to be brighter (but with it more crosstalk).
None of that really matters. What does, is that I can watch a 124" diagonal image without ambient light (night time in most family / bonus rooms), and have it look reasonable.
We've come a long way in two years, when I really dissed a JVC projector for it's really dim 3D - back then, 3D projectors were less efficient. That is, with the same lumens measured, today's projectors appear brighter when viewed. Well that JVC couldn't quite do 700 lumens! This projector is 2.5 times as bright as that $12K home theater projector, and it certainly is at least that much better in brightness!
Perhaps the first 1080p, affordable 3D projector was the Optoma HD33, at about $500 more. This projector does better 3D and much brighter too. And that Optoma's less than 2 years old (and still current).
Enough - I like the 3D - let's move on!