Originally Posted by Nick P
Just a thought...any chance that the 'slowly degrading focus' problem is a result of loud, aggressive LFE from the subs? It might be enough to vibrate the manual focus wheel.
No, that's definitely not the problem (loud bass). I've been working with two Epson's since Evan did his post, and he and I have been communicating by email, since. He sent me a couple of images of the menu - there is definite rather significant defocusing on his 6500UB. I started looking at the 6500UB I have here, right after he brought this up.
Even with no sound, the problem is the same.
The good news so far, is that the 6500UB I have here has far far less defocusing, enough that you pretty much have to be looking for it to spot it. I've done a series of closeup photos of part of the menu, after initial focus (less than 5 minutes after powerup), 10, 20, 30, and 35 minutes.
I'll be posting a blog tomorrow on my site that will have the images I just mentioned, (and probably a set from the Epson 6100, that I am shooting later tonight). I think that will help those who don't have an Epson understand what's going on.
As the images will show, the focus change is very slight. The Epson 6100 I have here also defocuses, but noticeably more than my 6500UB, but still far less than Evan's 6500UB- perhaps half way.
I said good news. As I have read others mention here, Epson thinks this is a problem that goes away with time. I can't confirm or deny, but the one I have here has 190 hours on it, and it is, as I said, far better than Evan's or the 6100 (35 hours) here. So, maybe that's the trick, I'm skeptical, though. (Something about plastics having memory?) We shall see. make that "maybe some good news".
I know Epson is devoting a lot of effort on this issue, but no doubt it will take them at least a couple of weeks to determine the extent of the issue (ie will it go away? if not...) and what, if anything they can do about it. Epson should be able to deal with this. But it's unlikely that they will say anything until they have a full grasp of the matter. Thing is they really do "give a sh_t" about this kind of thing at Epson. -art