Thank you for purchasing and using our products.

We would like to share the results of our investigation regarding the operation of SIGMA’s lenses for Canon EF mount, when used on the Canon EOS R5.

We have verified the operation with our SIGMA GLOBAL VISION (SGV) interchangeable lenses (Contemporary, Art, and Sports lines) for Canon EF mounts used on the“Canon EOS R5” with Canon’s mount adapter “EF-EOS R Series”, and confirmed that there were no problems with general operations such as AE, AF, and image stabilization.

Please note the following points when using our products.

1.　For SGV interchangeable lenses released before 2017* , it is necessary that the lens firmware is updated to Ver.2.00 or later.
* The release year can be confirmed by the edition number (A017, C015, etc.) engraved on the lens barrel.

Please refer to the following page for details of the lens firmware.
https://www.sigma-globa ... Read more »