Canon EOS 5D Mark IV firmware version 1.0.4 has been released, and it brings with it a handful of minor bug fixes and improvements. According to the new version's release notes, 1.0.4 'enhances' communication reliability between the SD card and camera, as well as fixing a Finnish language word error, an image issue experienced during long exposures and in bulb mode, and a problem with autofocus.
The full release notes:
Firmware Version 1.0.4 incorporates the following... more