Thank you for using Canon products.
Concerning the EF50mm f/1.2L USM interchangeable lens for digital SLR and mirrorless cameras, the following phenomenon has been confirmed.
Customer support for this phenomenon is described below.
We would like to offer our sincere apologies to any users who may have been inconvenienced by this phenomenon.
When shooting in high-temperature environments, the intended exposure level may not be achieved, resulting in fluctuations in the brightness of the images captured in the same scene or an error message (“Err01”) may be displayed.
Certain units of the EF50mm f/1.2L USM interchangeable lens for digital SLR and mirrorless cameras that were manufactured in 2022 are affected.
If the first four digits of the 10-digit serial number imprinted on the lens body are “1840”, “1940”, “2040”, “2140”, or “2240” (see image below), the lens is affected.
*Units with serial numbers imprinted on the mount are not affected.
A free repair service will be offered to users with the affected lenses. Kindly note that we will handle other repair requests as normal repairs.
When making a repair request, please bring in your lens body with the lens cap and dust cap attached.
Period of Accepting Free Repairs
On or before 31 March, 2026
Contact Information for Inquiries
Please contact your nearest service centre if you have any queries.
First Posted on 30 Mar 2023