A firmware update allowing the Canon 1D C to do 25P at 4K has been expected for a couple of months now. The good news: it's finally here. The bad news: you'll have to send your camera into Canon to get the update.
Canon EOS 1D C Camera Stock Photo

While it’s awesome that Canon came out with this update, in this day in age we are used to being able to download new firmware and install it in a matter of minutes. It’s bound to make some owners disappointed that they’ll have to give their camera up for at least a few days.

Canon EOS-1D C Cinema Camera Stock Photo

The new firmware (version 1.2.0) includes the following updates:

  • Provides support for 25.00p (fps) video recording frame rate (PAL settings) at the camera’s maximum 4K resolution.
  • A function to disable the image size selection button has been added.
  • Fixes a phenomenon in which a difference in exposure appears on every other shot when shooting continuously and the auto-lighting optimizer is turned on (on weak, standard or strong).
  • Fixes a phenomenon in which video recorded onto an external recorder sometimes becomes two-layered if it has been recorded through HDMI output.
  • The video frame rate now displays two additional decimal places, e.g. 24p -> 23.98p (fps).
  • Fixes a phenomenon in which the on-screen guidance cannot be fully displayed when setting the maximum limit value for the “Auto ISO Range” option.
  • Corrects errors in the Portuguese language menu. This cannot be displayed on units for Japan.