06-12-2022 11:28 PM
Have a 5d III that locks up with an err20. But when I rest it a few weeks, it will surprisingly work again, and will fire for a few sessions, before locking, like its draining power..
It still has a <<50K shutter count, has never been water affected. Best guess its the shutter assembly (maybe the curtain driver)?
Interested if anyone has experienced anything similar, or know any good repairers (CA based) before I retire it to use as an expensive paper weight.
06-12-2022 11:32 PM
At that level of usage, the 5DIII is worth making an effort to fix. I have one and it STILL takes great photos. I would suggest contacting Canon support on 1-800-OK-Canon and having a talk the tech people. They can also point you to the nearest certified repair facility.
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