Originally Posted by Mike Garrett
Kris Deering and Darin P spent a day comparing an older JVC against one of the highest ANSI contrast projectors made at the time (Samsung SP-A900B). They watched a lot of bright content and they were hard pressed to see any advantage in the higher ANSI contrast. Because as I said, the eye is so biased by the time you get into those higher ANSI scenes, the contrast looks good, even on low ANSI contrast projectors. If it didn't, nobody would buy JVC projectors. If the JVC looked washed out, then something else was going on, like the room was affecting the image or projector setup. I have viewed 100's of projectors and owned LCOS, SXRD, DLP and LCD. There is not an LED projector on the market that can do 10k to 20k on/off contrast. That would be native contrast.
Does 5-10% ADL mean ANSI contrast? I thought ANSI was 50% and less than 5% of video content is 20% to 50% ADL. Or is it an ansi image which is 50% input which makes it 22% adl? edit: Nvm, reread the pjdream stuff, an ansi image is still 50% output, but a 50% input gray is 22% output adl. I meant dynamic on/off for the LED projectors.
The room is treated, room reflections aren't affecting the increased black levels of brighter(5-10%?) scenes with the RS45, which is 8 years old now and probably doesnt have the light handling and convergence capabilities of the newer models. I can cast a very dark shadow over the black bars in those brighter scenes in high lamp with the iris open, and I can watch the black levels raise and lower significantly as ADL changes. I don't know how the setup would affect that, I set levels with avs clipping patterns and have hdmi levels set correctly... In those situations, the black levels do not change with the W1070, but black levels in low apl scenes with the RS45 are much darker than the w1070, and contrast in normal lamp with the iris closed is outrageous through the whole adl range and works really great for bright content like anime/cartoons, etc. The measurements seem to confirm those observations.
Sim2 HDR DUO(native)
Sim2 HDR DUO(dynamic)
Most of the .95 DLP LED projectors measured dynamic on/off of 10-20k, native of 2-3k, but I have no idea what 1% to 5% looks like, all I can go off is how the W1070 looks in its dynamic mode, which appears to be around 4k from 1% to 5% ADL.
So I'm wondering, with these LED projectors is 1% to 5% the same as the native contrast, or does it benefit from the dynamic dimming like the W1070 and HDR DUO?