If your camera arsenal includes a 5D Mark III, prepare to get your download on. Earlier today, Canon released a major firmware update for the hit DSLR -- version 1.2.1 enables clean, uncompressed HDMI output with simultaneous LCD display and recording to CF or SD cards, along with cross-type autofocus for apertures as small as f/8, bringing that aspect of AF capability in line with the EOS-1D X. You'll be able to take advantage of improved autofocus performance even when using an f/5.6 lens with a 1.4x extender, or an f/4 lens with a 2x extender. On the video front, version 1.2.1 will let you boot an uncompressed YCbCr 4:2:2 feed to an external recorder, enabling your pick of codecs and frame rates, while also eliminating arbitrary limits on record time. The free download, available for recent versions of Mac OS and Windows, is yours for the taking at the source link below.