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Avid Shifting Quicktime Gamma or Levels - not shifted in Premiere, Mpeg Streamclip or QT player

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Hi,

     I have a file that Avid is shifting the gamma on (or doing some similar levels conversion).  The quicktime is in the format libquicktime (which I am not familiar with).  The video appears to have proper black levels when played in Quicktime player or in Mpeg Streamclip, however the moment it is either imported or AMA linked to Avid, the image instantly goes very noticeably milky.  When it is exported from Avid, it is still milky.  I did tests where I imported other quicktime clips and they didn't have the same issue.

     I was able to fix the issue by converting the quicktime to be an Avid DNxHD115 quicktime with Mpeg Streamclip, before I brought it into Avid.  In this way, the color levels were maintained and Avid didn't shift them.  

    It's almost as  though there were some sort of LUT or something attached to the quicktime and Avid threw it away, but other programs held onto it.  When I took the original quicktime into Premiere, everything was fine - no shift.

     Does anyone know whats going on?  Having to convert in Mpeg Streamclip before ingesting into the Avid is very time consuming - especially with multiple files.

    I tried AMA linking and changing the source settings.  I know the original footage was shot on Alexa, but switching to Alexa levels doesn't help - all the black levels and colours look wrong.  The file was worked on and prepped by a different company before coming to us.

   Any suggestions on how to make Avid not alter the gamma or levels ?


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