Let me first say that the 2D picture of the 8k seemed better than my RS40... even the black levels. The image also appears sharper and the colors seem more accurate. Granted, I have not calibrated it, but out of the box Cinema1 is fantastic in Economy lamp mode.
Anyway, my issue... I have it mounted from the ceiling 12 feet away and using a level, I have determined that it is perfectly level along with my new 120 inch screen. I used the lens shift joy stick (hate that thing) to make the final alignments. After all of that, I have key stoning issues, i.e. the top of the picture tapers in a little. Sure, with my 3 inch wide black projector screen frame, I can hide it, but it is noticeable when there is a 4:3 picture or when I access the menu system.
I keep verifying that it's level and I have never experienced this before with my 3 previous projectors all mounted in the same spot using the same mount. Is it possible that the lens is damaged? Maybe I can angle the projector down just a bit to fix this, but then I'm introducing slight focus issues. Anyone else experiencing this? I'm very picky, but for 3K it should have a perfectly square picture. Thanks.