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James
James, Sr. Camera Expert
Category: Digital Cameras
Satisfied Customers: 15908
Experience:  Vast experience supporting and servicing digital cameras and recorders.
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Hi, I purchased an EF 75-300mm lens for my EOS 600D. When

Resolved Question:

Hi,
I purchased an EF 75-300mm lens for my EOS 600D. When I go to take a photo the shutter release is not firing or I get err 01 Communications between lens & camera is faulty. What is solution if any?
Regards
David
Submitted: 2 years ago.
Category: Digital Cameras
Expert:  James replied 2 years ago.
Hi David, did you get Canon lens, or another brand?
Customer: replied 2 years ago.

Canon 75-300mm 1:4-5.6 III USM

Expert:  James replied 2 years ago.
Okay, good. That's a great lens.
There is a set of metal contacts on the camera body and on the lens. Clean both sets with a cloth damp with a bit of Klinex.
Then try again please.
J.
Customer: replied 2 years ago.

no joy still getting err 01

Expert:  James replied 2 years ago.
Ok. Do you have other lens, and do they work properly?
Customer: replied 2 years ago.

yes i tried my EF-S lens it worked grand

Expert:  James replied 2 years ago.
Very good. It's a very simple thing really, you got a bad lens. There is a small electronics board inside the lens that the camera can control, and in your lens it is defective. It happens with a small percentage of new lens.

Simply have the lens replaced, as your camera is fine.

If you have any other questions or need more information, please ask me – I’ll be happy to respond!
I'd appreciate it if you can rate my service using the faces below my answer.

Many thanks,

James.
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