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Firmware v1.1.1 for Canon EOS 40D posted  
Tuesday, January 20, 2009 | by Rob Galbraith
Firmware v1.1.1 for the Canon EOS 40D has been posted. It provides fixes for several bugs and enables the PC sync terminal to be used to trigger an external flash, even when the built-in flash is popped up.

More information is in the release notes below.

What has changed in Version 1.1.1?

The following fixes and improvements have been incorporated.

  1. Fixes a malfunction that in rare occurrence causes a low battery indication to be displayed when using the EF 85mm F1.2L II USM lens. Depending on the battery check timing of the camera, the battery level displayed on the camera's LCD data panel may shows Battery will be exhausted soon or Battery must be recharged, even though the battery capacity is sufficient. This phenomenon may occur only when using the EF 85mm F1.2L II USM lens in combination with the EOS 40D and does not occur with other cameras and lenses.

  2. Fixes a malfunction that in rare occurrence causes an Err 06 Self Cleaning Sensor malfunction to appear on the camera's LCD monitor and LCD data panel, even when the Self Cleaning Sensor Unit is operating normally. This message may appear depending on the timing of when the camera is switch to the ON position.

  3. Fixes a malfunction that prevents correct colors from being printed when direct printing. RAW images captured using the camera's custom Picture Styles (Emerald, etc.), which have been downloaded from Canon's Web site and registered under User Def. 2 or User Def. 3. The raw image data captured under the above conditions does not have any problems. This phenomenon only occurs during direct printing.

  4. Modifies the level of subject brightness that causes the AF-assist beam to fire when using an external Speedlite. The AF-assist beam of the external Speedlite fires even when the brightness of external light does not require it.

  5. Enables an external flash connected to the camera's synchro terminal to fire even when the camera's built-in flash is popped up.

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