http://www.dpreview.com/news/1105/11053 ... rmware.asp
Canon has updated the firmware for its EOS-1D Mark IV and EOS 5D Mark II digital SLRs. Firmware versions 1.1.0 and 2.0.9 respectively both improve read/write speeds with UDMA 7-compatible CF cards, and also correct minor bugs and menu language errors. The firmware will be available for download from Canon's regional websites.
EOS-1D Mark IV Changes
This firmware update (Version 1.1.0) incorporates the following improvements and fixes.
1. Improves the writing/reading speeds when using UDMA 7-compatible CF cards.
2. Fixes a phenomenon that occurs when using high-capacity (32 GB or greater) CF cards: If either a CF card with only a little available space remaining or the battery is removed and then reinserted into the camera,
and then the user attempts to start shooting movies immediately, shooting may stop.
3. Corrects some mistakes in the menu screens displayed in Arabic and Portuguese.
EOS 5D Mark II Changes
This firmware update (Version 2.0.9) incorporates the following improvements and fixes.
1. Improves the writing/reading speeds when using UDMA 7-compatible CF cards.
2. Fixes a phenomenon that occurs when custom function C.Fn III-2 is set to [5: IS start] to assign IS start to the AF stop button on the lens: When used with lenses that do not have an AF stop button, the IS function will not work.
3. Corrects some mistakes in the menu screens displayed in Arabic, Portuguese, Spanish, and Thai.
Firmware updates will be available from the software download page of the Canon support area of each country's web site.
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