To Users of the EOS 5D Mark III Digital SLR Camera, EF200mm f/2L IS USM and EF800mm f/5.6L IS USM Lenses
Thank you for using Canon products.
It has been confirmed that when the EOS 5D Mark III Digital SLR Camera is used with the single focal telephoto lens, EF200mm f/2L IS USM, and some units of the EF800mm f/5.6L IS USM lens, there is a phenomenon where an abnormal noise can be heard from the lens.
The support measures for this phenomenon have been decided and they are as described below.
An abnormal noise occurs if either one of the affected lenses is attached to the camera with the Image Stabilizer switch found on the lens set to ON. This is due to the autofocusing (AF) function operating in synchronization with the image stabilizer . This abnormal noise does not affect captured images.
This phenomenon only occurs when the camera is used with either one of the specified lenses, and does not occur when the camera is used with other lenses.
EOS 5D Mark III Digital SLR Camera EF200mm f/2L IS USM Lens
EF800mm f/5.6L IS USM Lens
* The lens is affected if any of the following numbers on the fifth and sixth digit of the six-digit alphanumeric number are imprinted on the lens mount of the above EF lenses.
EF200mm f/2L IS USM: If the fifth and sixth digit is 00, 01, or 02.
EF800mm f/5.6L IS USM: If the fifth and sixth digit is 00, 01, 02, 03, 04, 05, or 06.
How to Identify Affected Products:
Please check the six-digit alphanumeric number as indicated in the image below.
Please contact your nearest service center on the availability date for servicing.