Originally Posted by DoxieRob
Yes, it's definitely there all the time and anything in B&W or any test pattern that has a mostly gray background is when it's easiest to see.
In fact, it's very reminiscent of the huge problem that Sony had with their SXRD rear projection units. Unfortunately, I had one of those too. There was a big class-action lawsuit against Sony for that particular problem. I had service performed on my unit three times (I believe the optical block was the problem) and it was still never completely fixed - the green shading areas just became a little smaller.
When it was time to replace my DWIN TV3 projector, I was hesitant to go with Sony as a replacement, because I didn't want to go through that whole ordeal again. But, I was assured that the problem was with their rear projector SXRD technology, only and that the green shading wouldn't manifest itself with their front projectors. With what AVStefan and I are now experiencing, it looks like the old problem may not have been overcome, after all. The only odd thing about it, is that he & I appear to be the only ones unfortunate enough to have received units with the shading problem, because I scoured the net and have followed this 95ES owners thread since it was created, but found no one else with this same issue.
I can assure you that you two guys are not the only ones with this issue. You're just some of the very few who have noticed it. Most people watch virtually no B&W material, and rarely notice shading with color images, except maybe hockey. Indeed you can find several posts (not many) for the 95s, 300s, and 500s where people had to return units due to shading problems - and these are the newest and best (re: shading) of Sony's models.
Based on many forum screen shots, I find many of even the pickiest forum members completely oblivious to this issue. I constantly see shots of a white desktop complaining about some minor lens corner issue with text, where the white desktop looks like a red to green rainbow from one side to the other. If you want to see what real shading problems look like, take a look at any of the LCD screenshots.
Judging from posts - and I pretty much read all the owner's posts for LCos units, JVC seems to be close, but not quite as good as Sony with Shading.
ALL three chip units suffer from shading imperfections. It's merely a question of degree. If you want absolutely perfect shading your only option are single chip units. You can go to many commercial digital cinemas and see shading problems - although one hardly ever sees B&W material in a commercial cinema. Also, we tend to project our home images much brighter than commercial theaters - making shading problems much easier to see.
As I wrote, I too am very bothered by shading, and it's the first thing I check with new units. I'm hoping that shading does not deteriorate over time with use. I don't know, but suspect that it might.