• AJA Video Systems

  4:2:2 vs 4:2:0 for chroma key… Big difference?

  Posted by Nick Lovell on March 24, 2009 at 6:14 pm

  I was wondering how much of a difference it would make to use a 4:2:2 signal out of a Sony camera and capture live to Apple ProRes 422 using the AJA IO vs. what comes off the HDV tape (4:2:0).

  Would it make for noticeably cleaner keys, or would the difference be subtle?

  Thanks!

  Nick

  Jeremy Garchow replied 17 years, 1 month ago 2 Members · 1 Reply
• 1 Reply

• 

  Jeremy Garchow

  March 24, 2009 at 7:04 pm

  [Osiri Sioux] “Would it make for noticeably cleaner keys, or would the difference be subtle? “

  It will be much much better. Not only is it 4:2:2, it is alos 10 bit precision. You will have a mch easier time keying from ProRes captured files straight off the camera than HDV.

  Jeremy

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