Video Functionality
The EOS 5D Mark II is capable of video recording in low-light situations and it is sold for a relatively low price, compared with professional video cameras. For the first eighteen months of its release, the camera only had a 30 frame per second (30p) video mode. On 15 March 2010, Canon released a firmware upgrade to add a 25p mode for PAL format compatibility and a 24p mode for compatibility with motion picture film cameras. The firmware update also modified the 30p mode to record 29.97 frame/s and the new 24p mode actually records 23.976 frame/s to have frame rates compatible with NTSC. Lastly, the update added manual control of the audio record levels and an official way to disable the automatic gain control.
Following the success of the Canon Hack Development Kit (CHDK) for Canon's PowerShot cameras, third party firmware was also produced for the 5D Mark II. The Magic Lantern firmware provides many additional video and cinematography related controls and meters such as zebra stripes for exposure control, depth of field estimates, audio VU meters and disables the automatic gain control on the microphone input (although some of these features have since been added to Canon's official firmware, as noted above).
Read more about this topic: Canon EOS 5D Mark II
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