Canon has updated their firmware for the Canon C300 to version 126.96.36.199.00. The previous update (posted on the 12 November) has discrepancies in colour balance, whereas this update fixes these issues. It is recommended all C300 cameras are updated to version 188.8.131.52.00.
Full details of the update are below (from Canon):
Firmware Version 184.108.40.206.00 incorporates all the functions and modifications listed below:
EOS C300 Cinema EOS Camera & EOS C300 PL Cinema EOS Camera
Fixes a phenomenon where the previous firmware version 220.127.116.11.00 offered incorrect color balance.
Ability to move the magnification viewing area around the LCD using the MAGN Function has been added.
Support for a 1440×1080/35Mbps recording mode has been added.
ISO up to 80,000 has been added.
Functionality to support the optional Canon GPS Receiver GP-E1 has been added.
A Key Lock menu setting has been added which now makes it possible to lock all operations, including the START/STOP button.
Using the optional Canon WFT-E6 Wireless File Transmitter, the camera’s remote-control application allows two users to access the same unit via a Wi-Fi link providing simultaneous camera operation and control and metadata input.
[Lens Exchange] and [ND+]/[ND-] have been added as functions that can be allocated to any assignable button.
A new Wide DR Gamma setting provides an expanded dynamic range of 800%.
Flicker Reduction has been improved.
EOS C300 Cinema EOS Camera only
Provides Push Auto Iris and One-Shot AF operation.
A new AE Shift function and the selection of various light-metering modes are now available when used with some Canon Cinema lenses (EF mount) and Canon EF Lenses.
Ability to assign the two control dials to operate either Iris or ISO sensitivity independently has been added.
Peripheral Illumination Correction Data has been added for seven (7) Canon Cinema lenses (EF mount) and fifteen (15) Canon EF Lenses.
A function has been added to enable continuous focus and iris setting on a subject in the middle of the screen when one of the two EF STM lenses** is attached.
**[EF-S18-135mm f/3.5-5.6 IS STM], [EF-S18-55mm f/3.5-5.6 IS STM].
*Note: Gamma information will not be shown correctly in the metadata of clips filmed on the Wide DR Gamma setting included in Firmware Version 18.104.22.168.00 and above when using the bundled software application Canon XF Utility Ver.1.3.1 or earlier. Therefore, we recommend our customers install Canon XF Utility Ver.1.3.2. The installer for this application has already been released.