Canon’s EOS C70 gets firmware update with Tracking AF at 120p, XF-AVC 4K 60p recording, better remote control and more: Digital Photography Review

Canon has announced a significant firmware update for its EOS C70 4K mirrorless cinema camera, bringing new and improved features to Canon’s 4K Super 35mm cinema camera.

Highlights of firmware version for the C70 include the addition of Eye Detection AF, Face Detection AF and Subject Tracking AF during Slow and Fast Recording, which ranges from 24p to 120p. The C70 will also now maintain its settings when switching between normal, slow and fast recording modes.

Until now, the C70 was limited to Zone AF in Slow and Fast shooting mode, and without full-tracking AF. Now, subject detection and tracking will be available in up to 4K/120p recording.

Firmware adds Eye Detection AF to Slow and Fast recording modes, allowing for subject detection and tracking at 4K/120p

The Super 35mm EOS C70 already includes internal RAW recording and H.265 and H.264 MP4 recording at up to 225 Mbps bit rates. The upcoming firmware update adds a lightweight, high-quality XF-AVC 4K Intra-Frame 60P option as well. This new option aims to minimize storage requirements while speeding up file transfers. The format, which can be recorded to an SD card, offers a maximum bit rate of 600Mbps, well above the H.265 MP4’s bit rate.

Canon is adding its IP-based XC Protocol to the EOS C70, enabling multi-camera remote control of camera settings using Canon’s RC-IP100 remote controller or other third-party XC Protocol-enabled remote control panels. The RC-IP100 was announced in 2021, about half a year after the EOS C70 hit store shelves, and is a touchscreen PTZ joystick controller. The $2,000 controller can remotely control up to 100 cameras and is also compatible with Canon’s CR-N700, CR-N500, CR-N300, CR-X500, CR-X300, C500 ark II, C300 Mark III and XF605 cameras.

Canon RC-IP100

While the Canon EOS C70 is aimed at high-end video users, that doesn’t mean everyone wants to color grade all their footage. The upcoming firmware update includes Canon’s 709 profile. Canon states the profile promises the same dynamic range as the existing Wide DR profile while delivering better contrast and a more cinematic look. Also new is a CMT 709 ‘Viewing Assistance’ feature. This allows video output from the C70 to be viewed on a REC.709-compliant monitor when recording in Canon Log 2 or Canon Log 3.

The update also makes the C70 fully compatible with Canon’s EF Flex-Zoom 45-135mm and Cine-Servo 15-120mm lenses when used with the company’s EF-EOS R 0.71x adapter. Now, the lenses will offer full communication between the lens and camera, with T-stop display, chromatic aberration correction, Dual Pixel CMOS AF compatibility and Dual Pixel Focus Guide.

Canon CN-E 45-135mm T2.4 LF Cinema EOS lens in EF mount ($21,999)

Rounding out the firmware update is the ability to see four channel audio on the camera’s level meter display on the LCD.

Within the C70 firmware update are many features recently added to two of Canon’s other Cinema EOS cameras, the C500 Mark II and the C300 Mark III. These cameras received XC Protocol support, improved autofocus performance at fast frames, four-channel audio display and improved lens support last month, so it’s nice to see Canon bringing it to its more affordable C70 camera system.

The Canon EOS C70 is available now for $5,500. Firmware will be available to download from Canon on December 8. For more information on the EOS C70, refer to our original coverage.

Press release:

Canon Introduces Multi-Feature Firmware Update for EOS C70 4K Digital Cinema Camera

MELVILLE, NY, November 16, 2022 – Canon USA, Inc., a leader in digital imaging solutions, announced today a multi-feature firmware update for the EOS C70 4K Digital Cinema Camera. The batch of feature upgrades coming via a firmware update will help to improve workflow and functionality for the content creation, live production and documentarian markets. The firmware update will be available as a free download on December 8th, 2022*. Top upgrades include:

  • Eye Detection Auto Focus (AF), Face Detection AF, and Subject Tracking AF During Slow and Fast Recording (24-120p): Canon’s Eye AF, Face Detection AF, and Subject Tracking AF allow for more accurate auto focus performance at accelerated frame rates, helping to ensure you don’t miss that crucial shot.
  • XF-AVC 4K Intra-frame 60p: Newly added XF-AVC Intra-Frame 60p records at a bit rate of 600Mbps and offers users a lightweight, high-quality codec that helps minimize storage costs and speed up file transfers. This new file format allows for easier handling of files and the ability to record to an SD card.
  • Canon’s IP-based XC Protocol: XC Protocol enables multi-camera remote control of camera settings via the Canon RC-IP100 remote controller or other third-party XC Protocol-enabled remote control panels.
  • Canon 709 Custom Picture Profile: The Canon 709 Profile has the same dynamic range as the current Wide DR profile setting with great contrast. This provides a rich, cinematic look to your footage right out of the box, without the time-consuming need for color grading.
  • CMT 709 “Viewing Assistance”: Allows the video output of the camera to be viewed on a REC.709-compliant monitor when recording in Canon Log 2 or Canon Log 3. The CMT 709 is a great starting point for any color grading and assists in making adjustments while shooting, reducing the time needed to edit the file in post-production.
  • Full Communication with EF-Mount Flex-Zoom 45-135mm and CINE-SERVO 15-120mm Lenses: Communication features include T-stop display, chromatic aberration correction, Dual Pixel CMOS AF, and Dual Pixel Focus Guide.

Additional upgrades of the firmware update include:

  • Maintaining camera settings when switching between normal and slow & fast recording modes.
  • Audio 4 channel display now viewable in the level meter display on the camera’s LCD display.

To download or more information regarding the firmware update and all of Canon’s professional video products and solutions, please visit

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