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

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Error 99 Every time that I'm using my canon 17-85 lense on my canon eos-20D it gives me error 99. Could you please help me solve this problem. Thanks

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Re: Error 99

I experienced the same problem ( Err 99) on similar set-up after taking around 9000 shots. I have read solutions from upgrading firmware to 2.0.3 and extensively cleaning the gold contacts on the camera and the lens with alcohol. Since my firmware is already ok, then I think the cleaning did the thing.. my camera does not randomly give the error anymore!

Posted on Dec 01, 2008

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Re: Error 99

Assuming that other lenses function normally on the camera, the "Err 99" can be caused by a failure of the aperture component in the lens. Error 99 is a generic error, so unfortunately it does not indicate exactly what is wrong. There are other factors that can cause the failure, but there is a good chance that the aperture is not functioning correctly. You can try cleaning the electrical contacts on the lens, if this does not work you may need to get the lens serviced. Check with Canon, or check the web for other repair service providers. David Millier Advance Camera Repair

Posted on Mar 06, 2007

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Its says error 99? means? can somebody help me? saying shooting not posiblle , needs to turn off/ then turn on.. and i tried so many times but it never helps. please help me .


this error 99 is generally occured when the lense is not recognized

this has been a common problem reported

we'll clear the contacts and connect the lense

try turning the Image Stabilization off and this could solve your problem temporarily

hope this helps

pls reate the solution if this helped any

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Sep 12, 2007 | Canon EF-S 17-85MM F/4-5.6 IS USM Lens

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