• Apple Final Cut Pro Legacy

  8 bit appears sharper than 10 bit

  Posted by Dan Sparks on May 7, 2007 at 10:03 pm

  Here’s the setup. I’m using a Blackmagic HD Extreme card, Sony HVR 25 deck, Convergent HD Connect-MI. My signal flow is as follows: HDMI out of the deck to the Convergent box, SDI out of the Convergent to the Blackmagic SDI in. The source tape is HDV, a well-lit scene – talking head.
  I set up a 10-bit sequence and captured the same short clip as 8-bit and 10-bit. Drop them in the sequence, did a split screen and what I’m seeing confuses me. The 8-bit side looks more detailed. The pores in his face, edges, and highlights all appear a bit crisper in 8 bit.
  I would have thought the 10-bit clip would have shown more detail. Details are not missing in 10-bit, they just appear sharper in 8-bit. I have searched around and haven’t really seen this detail difference explained. Is there some other benefit to the 10-bit image that I’m not seeing right off? I know it would be helpful if I were going to composite images to be in 10 bit.
  By the way, the Convergent box is super. I did split screens comparing SDI, Component, and firewire in of the same clip. The SDI is far better.

  Thanks,

  Dan Sparks

  Tricom Video

  Dan Sparks replied 19 years ago 1 Member · 0 Replies
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