Canon RF 1200mm F8L IS USM firmware v1.0.4

Firmware Version 1.0.4 incorporates the following enhancement:

1. Improves the Panning Assist control feature for 2nd and subsequent images captured during continuous shooting when using the electronic shutter. If the lens' firmware is already Version 1.0.4, it is not necessary to update the firmware. You can check the firmware version of the lens fr​om the camera menu. Refer to the camera instruction manual for how to check the current firmware version. Preparations for a firmware update: After the downloaded compressed file (.dmg file) is extracted, a firmware folder is created.

• Extracting the downloaded file: The downloaded folder is automatically extracted, and a firmware folder is created. If the download folder canno​t be automatically extracted, double-click the folder. In the folder you downloaded are the firmware (RF042104.afu / file size: 2,883,636 bytes) and instructions on the firmware update procedures (a PDF file in five languages: Japanese, English, French, Spanish, and Simplified Chinese). Before starting the firmware update operations, please be sure to carefully review the instructions to confirm your understanding of the firmware update procedures. (The following is the history of past firmware updates) Firmware Version 1.0.4 is the first update to be released.