Originally Posted by greg1292
Don't why you are having problems must be defective or a crappy hdmi cable
I owned the dt510 and the mits has better black levels. Does not sound like a bad projector
But an hdmi board in the receiver or bad cable. Good luck and sorry for your misfortunes
But you were not misled about black levels. Hard to respond by other members
since they are not experiencing your problems . I'm sure you hook up a bluray straight
to the projector with a different cable. As for the 1070 it will not be better than the HC 7900.
I set my PC to output 720p to test if the screen going blank was due to my 35ft HDMI cable "choking" with too much data and so far it hasn't gone blank at all with a 720p signal. If this isn't just a coincidence, what can I do if my 35 foot cable can't handle 1080p reliably? Is a 35 ft HDMI cable normally ok to carry 1080p? I had been using it with a 720p signal the previous 7 years with no issues.
I'm sort of encouraged by you saying the HC7900DW has better blacks than the DT-510 even though that's not my experience, I was also wondering if the fact I'm making a "mini" 60 inch screen on a white wall to test it could also contribute to my blacks being poor? In any case the blacks on my HC7900DW making a 60" screen seem more gray than the blacks of my DT-510 making an 82" screen.
I also see only very minor changes when changing the iris mode from off/1/2/3 on a dark scene, do you guys notice a noticeable difference between the 4 iris options? Perhaps my iris is broken, however there's no doubt it has no trouble closing completely on a 100% black screen, in fact that's the only time I've seen perfect blacks. I'm also probably wrong about this, but I believed the HC7900DW had a manual iris you could open and close (like my DT-510) in addition to the dynamic iris, but this doesn't seem to be the case, if there is an extra iris I can close through the menus please let me know.
At least with the blanking screen issue now likely to be related to my HDMI cable, I won't be returning it just yet, I might even keep it if I can't get better blacks as I noticed it's only in very dark scenes it becomes an issue, once there's a brighter part to the image the blacks do seem darker due to the brighter parts of the image.
Why do you say the BenQ 1070 wouldn't be better considering it seems to have a 4 times higher native contrast? And how will I be able to confirm whether my unit is defective or not? If it wasn't for all the reviews saying how awesome the blacks are I wouldn't be so confused, I just have a very hard time understanding that people would call the blacks I'm getting out of my HC7900DW very good, to me they're barely acceptable for a projector that was once $3500, to the point I might return the projector because of it.