EOS-1D Mark IV & EOS-1Ds Mark III Firmware Update

Craig
1 Min Read

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For the EF 200-400 f/4L IS 1.4x
Canon has updated both the discontinued EOS-1D Mark IV and the EOS-1Ds Mark III to work correctly with the new EF 200-400 f/4L IS 1.4x lens that is about to hit stores.

 

Canon EOS 1D Mark IV

  • Version 1.1.3
  • Enables the center AF point to autofocus when the camera is used with the EF 200-400mm F4L USM Extender 1.4X lens and an Extender, whose combined maximum aperture is f/8.
  • Fixes a phenomenon in which abnormal images may result when continuous shooting mode is enabled and the image size is set to “RAW” or “RAW+JPEG.
  • Download Here

Canon EOS 1Ds Mark III

  • Version 1.2.2
  • Enables the center AF point to autofocus when the camera is used with the EF 200-400mm F4L USM Extender 1.4X lens and an Extender, whose combined maximum aperture is f/8.
  • Download Here

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Craig is the founder and editorial director for Canon Rumors. He has been writing about all things Canon for more than 17 years. When he's not writing, you can find him shooting professional basketball and travelling the world looking for the next wildlife adventure. The Canon EOS R1 is his camera of choice.
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