Question about Canon EOS 40D Digital SLR Camera Digital Camera with 17-85mm IS USM Lens

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I was shooting today and all of a sudden I got an error code 01, which says that the lens and camera aren't communicating and that I need to clean the lens contacts. For one thing, I'm not sure how to do that and, for another thing, it does it on more than one lens. I just had my Canon 100-400 lens repaired by Canon and I'm wondering if something happen to the contacts that makes that lens and others not communicate properly. My camera started working again, but I couldn't make any changes for awhile (shuuter speed, aperature, ISO, etc.), several of my menus disappeared and the shooting quality changed from RAW to small jpeg. Any ideas?

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Try reading this.

Posted on Mar 16, 2009

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you can use a contact cleaner sparingly, available from frys electronics or any other electronic reseller like radio shack.
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