Canon releases new firmware for the EOS 5D MkIII featuring uncompressed HDMI output as well as autofocus up to f/8

Canon releases new firmware for the EOS 5D MkIII featuring uncompressed HDMI output as well as autofocus up to f/8

The new firmware enables HDMI output functionality, ideal for professional videographers, as well as improved AF performance for photographers shooting with telephoto lenses.

Following feedback from cinema and TV production professionals, the new firmware includes ‘clean’ HDMI output, enhancing overall video editing and monitoring procedures. Videographers will be able to output high-definition uncompressed video data (YCbCr 4:2:2, 8 bit) without any embedded icons or symbols, from the EOS 5D Mark III to an external recorder using the camera’s HDMI terminal. The new functionality will enable easier editing of data with minimal image degradation for greater on-site workflow efficiency during production, as well as the option to record to the internal memory card at the same time.

The enhanced features also include

outputting of time code over HDMI to an external recorder, as well as the ability to synchronise start and stop of video capture with the start and stop of recording to an external device*. The new firmware also enables real-time output to external monitors, ideally suited for on-set monitoring by the wider production team.

The new firmware also adds improved AF performance when capturing still images, opening up more advanced shooting possibilities for photographers. When using a lens and extender, resulting in a maximum f/8 aperture, the new firmware enables the camera to utilise the EOS 5D Mark III’s central dual cross-type focal points, currently only available up to an f/5.6 aperture. The new capabilities allow sports and nature photographers to use AF when getting closer to distant subjects, achieving precision detail when using telephoto lenses. (Canon CPN)

Changes Firmware Version 1.2.1 incorporates the following functional improvements and fixes.

  1. 1.  Uncompressed HDMI output is now enabled.
  2. 2. Enables the center AF point to autofocus when the camera is used with Canon EF lens/extender combinations whose combined maximum aperture is f/8.
  3. 3. Improves the speed of the camera's acquisition of focus when using a Canon Speedlite's AF-assist beam.
  4. 4. Fixes a phenomenon in which the LCD monitor may freeze and display Err 70 or Err 80 when a still photo is taken during Live View or in movie shooting mode.
  5. 5. Fixes a phenomenon that may occur when the continuous shooting priority setting is enabled for multiple exposures, such that, after the sixth image is taken, there is a slight pause before the remainder of the sequence is completed.
  6. 6. Fixes a phenomenon in which the viewfinder display shows incorrect information during AEB shooting.
  7. 7. Communication with the WFT-E7 Wireless File Transmitter has been improved.
  8. 8. When images have been successfully transferred with the WFT-E7 Wireless File Transmitter through the FTP protocol, an "O" will be displayed. When images have not been successfully transferred with the WFT-E7 Wireless File Transmitter through the FTP protocol, an "X" will be displayed.
  9. 9. Fixes a phenomenon in which the camera may not function properly when an Eye-Fi card is used.
  10. 10. Fixes a phenomenon in which the focal length value listed in the Exif information is not displayed correctly for images shot with the EF 24-70mm F4L IS USM lens.
  11. 11. Fixes a phenomenon in which the lens firmware cannot be updated properly.
  12. 12. Corrects errors in the Arabic language menu. 13. Fixes a phenomenon in which the camera changes the AF microadjustment value to -8. 14. Fixes a phenomenon in which the on-screen guidance cannot be fully displayed when setting the maximum limit value for the "Setting the ISO Speed Range for Auto ISO" option.


* Items No.1 through 12 have been incorporated into firmware version 1.2.0. * Items No.1 through 14 have been incorporated into firmware version 1.2.1.
Firmware Version 1.2.1 is for cameras with firmware version 1.2.0 or earlier. If the camera's firmware is already version 1.2.1, it is not necessary to update the firmware.

Photo ID Database: 
Selected Items
Click to close the selection preview
Compare List
Teleconverters: Click to see the selected items
Click to Compare the selected items
Flashes: Click to see the selected items
Click to Compare the selected items
Lenses: Click to see the selected items
Click to Compare the selected items
Cameras: Click to see the selected items
Click to Compare the selected items