Originally Posted by Mark Rejhon
If Optoma wants, I'd love Blur Busters to give this projector a test. 1080p 120Hz+ gaming tests.
I think the DMDs these projectors are using can only do up to 144hz in 8-bit, mayyybe 10. 240hz is probably far from the realm of possibility, although who knows. Generally you must sacrifice bit depth to get higher refresh rates on DLPs, and it seems like only the newer, 0.47 inch DMDs can do 240hz. I think it's a function of not only the DMD controller, but the mirror switching speed, and the smaller 1080p DLPs can switch faster.
I'm not 100% sure about this, but logically, if they could simply replace the controllers in the older projectors to do 4K = 1080p x 4 at 240hz, they would have, because the DC3 chips can do up to 2500:1 native contrast and the 0.47 inch ones struggle to do more than 800:1. For this reason, I suspect 240hz is out of reach but 144hz native should be possible (since that's what they run at in 3D mode for triple flash), modulo the controller's specs of course.
One thing which might contradict this is the fact that the 8K DLP projectors which are 4K native 1-chip designs, do it via 240hz and use older 4K chips of the Dark Chip 3 era (0.95 inch?), I believe. So it might be possible to drive DC3-era 1080p DMDs at 240hz. I just don't know why TI would want their customers to deliberately re-tool their home cinema projectors to use 0.47 inch instead of 0.65 inch since the latter perform so much better in terms of contrast.
I hope you get a test projector to review!