Canon USA announced in October 2012 that they were planning a firmware upgrade for the EOS 5D Mark III at the end of April. The update will give the option of outputting uncompressed video at YCbCr 4:2:2, 8 bit to an external recording device via the camera’s HDMI port. In addition, it will also expand AF via the central cross-type focus points with a maximum aperture of a lens and extender combination to f8.

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