Question about Canon EF-S 17-85MM F/4-5.6 IS USM Lens

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Sharpness problem I have canon 20d and canon 40d. Have problem with sharpness on EF-S 17-85mm. The sharpness is very good on 80-85mm, but when the focal distance is 17.....80mm the sharpness is very, very bad! That's the same on a 20d and 40d!

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That should be a very sharp lens, only thing I can think of is that you have a bad copy. It can be sent into Canon where they will fix it.

First, I would try giving it a full cleaning, and taking shots in good light on a tripod at 17-80mm, just to make sure its really the lens

Posted on Dec 18, 2007

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Posted on Jan 02, 2017

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