From Canon USA:
This firmware update (Version 188.8.131.52.00) incorporates the following additional functions and modifications:
- A function has been added which allows automatic continuous focusing and iris setting on a subject in the center of the screen when using the EF-S 18-135mm f/3.5-5.6 IS STM lens.
- The polarity balance of the XLR terminal has been modified to improve compatibility with external audio devices. The pin configuration has been modified to be consistent with the Instruction Manual.
For details about the new functions, please see the latest user’s manual (PDF) on Canon’s Web site.
Download C100 v184.108.40.206.00 Firmware
B&H carries the Canon C100 cinema camera.