I have a Rebel T1i Canon camera. I try to take a picture and my camera doesn't take a picture. A screen comes up and says "Communications between the camera and lens is faulty. Clean the lens contacts." I have cleaned the contacts and it still doesn't work. Can I fix the problem at home? Or do I need to send it in and get it fixed? Where would I send my camera to? How do I tell if its my lens or the camera?

SOURCE: Canon 400D error code 01

reset camera by removing battery completely for about 10 seconds.
otherwise, time for service.
sounds like a processor board issue.
you can use a contact cleaner sparingly, available from frys electronics or any other electronic reseller like radio shack.
good luck
mark

SOURCE: Canon Rebel T1i

I have the canon 70 -300 sitting right here beside me on my XTi, it also fits my XSi and all my EOS mount film bodies. one thing about canon EOS lenses and bodies: They fit and work together. Yes there are cheaper lenses, but I just answered another question on this website from somebody who has a 3rd party lens (and a high quality lens ta-boot) that will not work on his canon. This is typical of canon. They do not release all of their codes to 3rd party manufactures. Your friend just bought a premium camera, do not let him put a lesser lens on the camera, he will not be happy and the savings will not be that significant to make up the difference...

SOURCE: Err.1 of Canon lens

Maybe that's why it was for sale on Ebay.

SOURCE: My Quantaray 100 to 300mm

Your problem is a simple one: technology doesn't stand still.

Your lens was designed to work with Canon technical protocols which existed seven years ago and things have advanced somewhat since then.

With some third party lenses it's possible to send the lens to the manufacturer's service agent and pay to have it serviced and updated, but this cannot be done with your lens.

You'll have to buy a more recent lens model if you want to use it on your Rebel T1i. Older Canon lenses should mostly still work (unless Canon clearly state otherwise) as Canon will have taken their design into account on later bodies, but Canon have no interest nor any reason to make their later bodies able to use older non-Canon products.

Sorry that this is not the answer you hoped for, but I hope that you have still found it to be of some use and that you take a moment to rate my reply.

Ginko

• 19396 Answers
• Posted on Oct 20, 2010

SOURCE: I have a Canon EOS

Hi.

Problem is either the well known firmware bug, or a real problem in communication between lens and camera.

Do a firmware update ensuring that you read and follow all the indications in the page linked below. If you fail the firmware update the camera may not start anymore.

Here Canon firmwar update for EOS Rebel XS / 1000D

That will usually fix the problem, if it doesnt; check lens connector contacts and test using different lens.

Regards.

Ginko.