Initial Tests for ERR99 and EF-S 17-85mm

Canon EFS 17-85mm f/4-5.6 iS USM
Canon EFS 17-85mm f/4-5.6 IS USM

My initial tests revealed it might be with this lens, the Canon EF-S 17-85mm f/4-5.6 IS USM, might have been causing the error. Yet, I still have to do more rigid tests, as when I attached back this lens after rubbing off gently its gold contacts, error was gone again.

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marky August 15, 2009 Reply

My brother is also having the same problem on my old 400d with kit lens..not sure what’s causing it

deuts August 19, 2009 Reply

For me so far, it appears it was with the gold contacts that connect the lens to the camera. I hope that was all.

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