New firmware, with uncompressed HDMI output support and improved AF, slated to arrive in Spring 2013.
Mark your calendar for April 2013. that's when the new firmware for the Canon 5D Mark III, which is currently available at Adorama for $3,199, will be available to the public, according to the company's announcement today. The major update will be designed especially for digital cinema shooters by enabling the use of uncompressed HDMI Output support. This will make video editing and monitoring more efficient. Uncompressed video data (YCbCR 4:2:2, 8 bit) can be transferred from the Canon 5D Mark III to an external recorder via the camera's HDMI terminal. This will allow for editing video data with minimal image data degradation. This is a huge convenience when doing on-location editing. Captured video can be displayed on an external monitor for real-time monitoring.
For still photographers, the upgrade will improve autofocus performance, according to Canon. The new firmware will support AF on lenses equipped with an extender for a maximum aperture of f/8, instead of the current f/5.6. This will be especially beneficial to nature photographers.
The new firmware will be available, for free, in April 2013, via download.