From Canon:
Firmware Version 1.0.8.1.00 incorporates the following fixes and improvements:
- Some of the EF lens products that can be mounted on the camera can be controlled more reliably.
- Corrections to the Spanish and German language texts in the View Assistance function [View Assist.].
- Efforts to correct image color fringing when a subject is of high contrast have been made.
Download the EOS C300/C300PL Firmware Update 1.0.8.1.00: Windows | Macintosh
B&H carries the Canon EOS C300 Cinema Cameras.