• Adobe After Effects

  75% Bars

  Posted by Adam Swaab on September 14, 2005 at 6:09 pm

  Hi,

  I’ve been asked to deliver a spot using 75% bars as my limit for chroma/luminance. Normally, I just deliver with the broadcast filter on top of everything, knocking my spot down to 110 IRE. We gave them a test this way, and they said it was too hot.

  So, I have no idea what I should be setting my colors/whites at for 75% IRE. Can anyone explain this in a layman’s terms and tell me what settings I should be using?

  Thanks!
  Adam

  Filip Vandueren replied 20 years, 9 months ago 2 Members · 3 Replies
• 3 Replies

• 

  Filip Vandueren

  September 14, 2005 at 7:15 pm

  Try using the Color Finesse Filter instead of the Broadcast colors, it has Luma and Chroma Limiting and some software vectorscopes where you can see how hot the video is, and how the histograms are responding.

  Setting it to something like this:

  Soft Clip Knee Level: 60
  Soft Clip White Level: 80
  Soft Clip Max Leve: 110
  Luma Hard Clip Level: 75-80

  Chroma Max Limit: 100
  Chroma Min Limit: -20

  Should keep you within 75 IRE
  Experiment a bit to see what those sliders do.

  Chroma should not be an issue at such faded levels, but I threw in a little limiting.
• 

  Adam Swaab

  September 14, 2005 at 7:35 pm

  Wow. Thanks. We’re going to send over another test to the network and see how it goes.
• 

  Filip Vandueren

  September 14, 2005 at 8:17 pm

  I read the posts in the broadcast forum,

  Can’t garantuee that SA Color Finesses Vectorscope is as “carved in stone” good as that scope plug-in,
  But See what the network says.

Reply to this Discussion! Login or Sign Up