Clokwork When you speak of response time, is that how fast it takes for each pixel to turn on and off? I'm guessing this has something to do with the mirrors switching so fast?
Yes, exactly. The main response time spec is usually measured from black to white or grey to grey, but it sometimes doesn't tell the whole story. For example, many VA LCDs have pretty good black to white response times, but awful white to black response times. This causes "black smearing" artifacts because the VA's pixels cannot dim to black as fast as they brighten to white.
Yeah, the mirrors in DLP are zippy. As far as I know, it's most of why their response time is so good.
Clokwork I also haven't verified if they use temporal dithering and/or PWM.
I'm curious to know what it's like and how much it varies between different brands/models of DLP, too.
Clokwork I'm very impressed that Optoma can have such a low input lag with the amount of processing DLP requires. That's pretty impressive. I should have been more specific when I spoke of the LS500 as I was only in the market for UST projectors at the time.
Ah okay. Yeah, I am too. I get that projectors are more niche nowadays, but I'm surprised it didn't get more coverage. Most projectors have even worse input lag than TVs, let alone something competitive with a gaming monitor. This review of the UHD35, their first projector with 4ms lag, is the best I could find. The best input lag he measured was 8ms, but that was at a 120Hz refresh rate. If he measured with 240Hz it would have been in the ballpark of 4. Still, I'm pretty sure anything below 10ms was unprecedented at the time.
The main issue with the UHD35 seems to be sub-par contrast. The new UHZ50 is rated at double the contrast in the spec sheet, so I'm excited to see how it compares.