Canon EOS-1D Mark IV Firmware Update Version 1.1.3

Canon has released EOS 1D Mark IV firmware versions 1.1.3.

Details:

1. 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.
2. 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.