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| p.1 #20 · 5DIII cleaning my focusing screen |
Where are the 2 screws? Do have to lock the mirror or are they easily reachable? I'm still sending it to Canon because don't want to void the warranty but as the Camera is only 4 moths old and I do a lot of outdoor shooting this will be a recurring problem so I should learn to do it. This is great advice, thanks
I agree, if it's under warranty, just send it in. But for next time here's a quick image of the two black screws just inside the mount you remove; I've removed the one on the left, the one on the right is still in place.
I can't say exactly what it is about the screen that makes cleaning so hard, but my guess is very, very fine lines etched into it very closely made out of a very soft plastic. If you rub it with anything of significance, it leaves a permanent mark. If you brush it lightly, the stuff doesn't want to come off.