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Firmware update notice for EOS 5D Mark IV

Canon has posted a message saying that the release of firmware to enhance functions of the EOS 5D Mark IV, originally scheduled for 29 November 2017, has been postponed until late February 2018 for reasons related to firmware preparation.

The planned firmware update will incorporate the following changes:

1) Support will be added for chromatic aberration correction, peripheral illumination correction, distortion correction, and Digital Lens Optimizer when using Digital Photo Professional to process RAW images captured with the following TS-E lenses:
TS-E 17mm f/4L
TS-E 24mm f/3.5L II
TS-E 50mm f/2.8L MACRO
TS-E 90mm f/2.8L MACRO
TS-E 135mm f/4L MACRO

2) It will fix a phenomenon in which standard exposure* may not be obtained, or an irregular exposure may result, when Silent LV (Live View) shooting with the following TS-E lenses:
TS-E 50mm f/2.8L MACRO
TS-E 90mm f/2.8L MACRO
TS-E 135mm f/4L MACRO
3. Support for Exif 2.31 will be added.

*This phenomenon occurs when tilt or shift is applied on a TS-E lens during LV shooting when Silent LV shooting is set (set to Mode 1 or Mode 2 on the menu). For this reason, until the firmware update, when performing viewfinder shooting or LV shooting, shoot with the Silent LV shooting set to [Disable].

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