Having problems with your Canon EOS 40D Digital Camera ?

I have an 01 error on my 40d

\015 Initially the 01 error came on intermittently but now it is a permanent feature on the 17 - 85 canon lens. It works perfectly with other lenes though.\015

Answers :

Try cleaning the contacts on the lens and camera body where they meet with a cotton swab lightly dampened with rubbing alcohol.
Repair Help & Product Troubleshooting for Canon EOS 40D Digital Camera

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