Canon has issued firmware updates for its EOS 7D and EOS 550D DSLR cameras.

 

November 26, 2010: Canon has issued firmware updates for its EOS 7D and EOS 550D DSLR cameras.
Firmware version 1.2.3 for the EOS 7D incorporates the following fixes:
1. Fixes a phenomenon in which the settings of the Speedlite Transmitter ST-E2 revert to the default settings when both the camera and the ST-E2 are set to auto power off.
2. Fixes a phenomenon in which the Macro Ring Lite (MR-14EX, MT24-EX) and slave flashes do not sync while shooting wirelessly.
Firmware version 1.0.9 for the EOS 550D incorporates the following fixes:
1. Fixes a phenomenon in which tone jumps become noticeable in some images, depending on the shooting scene, when shooting with the Auto Lighting Optimizer settings (Low / Standard / Strong).
Both updates are available as free downloads from Canon’s EOS Digital site (www.canon.com/eos-d/). Full instructions for downloading and applying each update are provided.