Hiya folks, I finally thought I'd ask about this little problem I'm having with my BenQ W1070. In pure black images, I see circular, slightly grey blobs, and about six of them and I see a new one at least every one to two weeks, it's a bit worrying. There not there at all with normal images, even a pure grey image, but even though it's only visible on blacks it's still can be a wee bit distracting.
Has anyone an idea what it is for sure, and can it be fixed at all?
None at all? I've been doing a little reading on the subject here before I posted and it might be "dust blobs"? I believe that is dust behind some specific part of the lens? I hear mention of dust on the bulb can cause this too.