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p.1 #5 · p.1 #5 · Can EXIF data help troubleshoot a non-focusing lens? | |
Three things occur to me:
1: Condensation on the lens rear element, mirror, or AF sensor that prevented focus (but I would expect this to cause the problem at first, not be good for a few shots, then stop. But if the lens was in a warm pouch or something, I can see this happening after a few shots.).
2: Condensation on the lens electronics, but I would expect an error message, although it with Nikon's system sometimes it doesn't.
3: The metal baffle / shield over the AF sensor got stuck for a few shots, then unstuck. This happens sometimes in temperature extremes and can have effects from no AF to randomly weird AF. Sometimes it happens once and never happens again, but sometimes it eventually sticks in the bad position and has to go to Nikon.
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