Canon has introduced an update for its EOS 5D Mark IV DSLR that corrects a color issue when using flash, and improves the camera’s performance when the company’s new tele-converters are in use.

Firmware version 1.0.3 fixes an issue that created different color temperatures in flash output according to the metering mode in use at the time, and makes communication between camera and lens more reliable with the EF1.4x III and EF2x III tele-converters. The company says an additional fix corrects the way the level gauge is displayed when the camera is held in portrait orientation with the grip below the lens.

For more information visit the Canon website.

Manufacturer's release notes

Changes in the Firmware

Firmware Version 1.0.3 incorporates the following fixes and improvements:

1. Corrects a phenomenon in which the color of images varies depending on the metering mode selected during flash shooting.

2. Improves the reliability of communication when using the EF1.4X III or EF2X III extender.

3. Corrects the level display when the camera is held in the vertical orientation with the hand grip pointing downward.

4. Improves the reliability of communication via USB cable when using the Lens Data Registration function with EOS Utility 3.

Firmware Version 1.0.3 is for cameras with firmware Version 1.0.2 or earlier. If your camera's firmware is already Version 1.0.3, it is not necessary to update the firmware.
When updating the firmware of your camera, please review the instructions thoroughly before you update the firmware.

The firmware update takes approximately 4 minutes.