Thank you for using Canon products.
Changes:
Firmware Version 1.0.5.1 incorporates the following fixes and enhancements:
1. Adds compatibility with the "CINE-SERVO" cinema lenses CN30×40 IAS J/R1 (RF mount) and CN30×40 IAS J/P1 (PL mount).
2. Improves operational stability.
For details, please refer to the user manual (latest version) for this product.
Caution:
- Please use an SD/SDHC/SDXC memory card that is 512MB or greater to perform the firmware update.
- Firmware version 1.0.5.1 is for updating cameras running firmware version 1.0.0.1 - 1.0.4.1. If your camera's firmware is already version 1.0.5.1, it is not necessary to update the firmware. Once the camera is updated to the latest version, it cannot be restored to a previous version.
- Please refrain from loading menu settings generated using the most recent firmware version to a product running an old firmware version, as doing so may affect camera operations.
- Firmware update must be performed in VIDEO mode.
Further information:
• EOS C50 Firmware Download Link