Question about Canon EF-S 17-85mm f/4-5.6 IS USM for EOS 20D, Rebel Series
It has lens communication problem either it can be giving by lens main pcb or diapharm unit.
you can open lens rear cover and clean all main pcb connection with iso lequid or fiber pen and then put it back all things back and try with body if its work then problem is solw
if not then nned to replace main pcb first and try i think it can be solw the problem.
other wise you have to replce lens shutter unit.
Posted on Aug 30, 2010
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Posted on Jan 02, 2017
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