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| Re: 5DIII cleaning my focusing screen |
1) Call Canon parts and order a focusing screen. $19 last time I checked, cheaper if you buy a box of 5.
2) Change it.
We've attempted to clean, oh, about 500 of them. I think we were able to do it successfully 2 or 3 times. Replacement takes 5 minutes.
What makes the screen so hard to clean. Does the dust get lodged on the SI/prism side of the screen?