Question about Canon EF-S 17-85MM F/4-5.6 IS USM Lens
Tried to take photos today with Canon EF-S 17-85MM F/4-5.6 IS USM lens on Canon 40D, aperture reads 00, can't use aperture priority mode as won't change from 00, displays 00 in all modes including the Fully Auto mode, cannot change AF modes nor drive modes while this lens is on. I used another lens and it works as it should. I will try cleaning the contacts but what else could it be? Only 6 months old.
Very likely is the lens aperture diaphragm faulty. Need to sent back to Canon.
Posted on May 13, 2009
The USM engine may be out of order, or there is a bad contact in the lens.
Posted on Feb 04, 2009
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Posted on Jan 02, 2017
something sounds strange about this. aperture 00 is an invalid aperture value. stands to reason if that is the case the camera would complain about it. via error code. being that its only six mos. old i would give canon a ring.
Posted on Dec 11, 2008
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