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Occasional Contributor
Posts: 7
Registered: ‎07-30-2017

lens

I have a EF 100-400 f 4.5-5.6 l series lens. It is suddenly having a hard time communicating with the camera. I get an error message that says clean the contacts, which I have done. The problem persists. I am in Panama, and there is an authorized Canon service center, but I would like to know if there is any further trouble shooting I can do at the house without taking it to the service center 6 hours away.

Respected Contributor
Posts: 1,032
Registered: ‎02-06-2013

Re: lens

Are you using it with an extender or just by itself?

 

With an extender, you should mount the extender to the lens first before mounting on the camera, otherwise you might get this error a lot.

 

Besides cleaning the contacts (which rarely works) and power the camera off, removing the battery and wait a while for total discharge, there's not a lot of things you can do.

 

 

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VIP
Posts: 9,803
Registered: ‎12-07-2012

Re: lens

Make the trip to the service center.  It will help keep your blood pressure in check! Smiley Happy

EOS 1DX and 1D Mk IV, along with, a lot of other stuff.
Occasional Contributor
Posts: 7
Registered: ‎07-30-2017

Re: lens

Yeah, bummer, I was afraid of that. The Canon service center here in Panama leaves a lot to be desired. I had this problem with an older lens, it cost $500+ to fix and took 6 months. Thanks anyway.

Occasional Contributor
Posts: 7
Registered: ‎07-30-2017

Re: lens

Thanks for the reply. No, I use the lens by itself. Have been turning the camera off/on, and taking the lens off and on, the problem is getting more persistent. Looks like a trip to the big city. Thanks again.

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