Canon has released firmware v2.0.7 for the 5D Mark II. The bug fix update corrects three problems: abnormal aperture behaviour when shooting video, a metering error in manual exposure mode and an instance of an attached WFT-E4/E4A or WFT-E4 II/IIA not powering down automatically after completing an FTP transfer.
A full description of the changes is below:
What are the changes in Version 2.0.7 firmware?
The following improvements and fixes have been incorporated.
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).
Supplemental Information: This phenomenon involves the aperture of the lens exhibiting abnormal movement when the focusing ring moves (during focusing). For zoom lenses with variable maximum apertures, the aperture changes when the zoom ring is operated (during zooming), but this is normal behavior, where the effective aperture changes according to the focal length (the zoom position).
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.