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Activity Forums Blackmagic Design One more question – Does Decklink HD Clamp Levels at 100 or 110?

  • One more question – Does Decklink HD Clamp Levels at 100 or 110?

    Posted by Kai Whittaker on March 23, 2006 at 4:55 pm

    I remember someone – it might have been Luke or someone else at BMD, telling me that decklink clamps levels at 100 or 110 on output. Is that true?

    I have to pass technical inspection for a bunch of videos I”m wokring on, and Final Cut Pro HD’s scopes don’t seem to go beyond 110 for white or chroma and I need to make surewe don;t fail the technical inspection (cause we’ll miss an important deadline). I was just wondering if anybody has any ideas about how to make sure my output is limited to 110. I’ve been going through my timeline using a proc amp to turn down a bunch of the clips i know are hot – using the histogram and the parade on the FCPHD scope as a guide.

    I’d love to rent a hardware scope or a broadcast HD monitor, but it’s not ‘in the cards’ for me right now. Anybody have any helpful hints?

    Thank you,

    Kai

    Lexerton replied 20 years, 1 month ago 2 Members · 1 Reply
  • 1 Reply
  • Lexerton

    March 24, 2006 at 12:49 pm

    I use the broadcast safe filter (Video filters – Color Correction)

    You can set it to whatever you want but the presets are helpful. Put if after any color correction and you shouldn’t go over. Beware any kind of clamping, though, as it can do funny stuff to your pictures.

    (I have OnLined 10 shows for Discovery using this in the last few months and not one has failed QC)

    Alex

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