Canon has issued a firmware update for the 5D Mark II. Firmware version 2.0.7 addresses the following issues, which were introduced in firmware versions 2.0.4 and 2.0.3.
- Fixes a phenomenon in which the aperture exhibits abnormal movement when shooting movies in manual exposure mode and Aperture Priority AE (Av mode) using some Canon lenses (such as macro lenses).
- Fixes a phenomenon in which the exposure level shown in the LCD panel differs from what is shown in the viewfinder when shooting still images in manual exposure mode.
- Fixes a phenomenon in which the Wireless File Transmitter (WFT-E4 or WFT-E4 II) may not automatically power off when used for FTP transfers.
Download and installation instructions for the firmware are available on Canon’s website.