4 Replies Latest reply on Jul 28, 2011 6:43 PM by DLpres2

    AE CS3 inconsistent colors - HDTV (Rec. 709) color preset is bad?

    DLpres2 Level 1

      I have 2 sets of known-good SMPTE colors bars generated from Avid - SD and HD. In AE, with Simulate Output turned on, the displayed black level of the HD bars is twice as high as the SD. They should be identical.


      I created 2 projects for each clip:


      In SD:
      Working space: NTSC SDTV
      Clip Interpret footage: SDTV NTSC 16-235
      Use Display color management
      Simulate Output -> SDTV NTSC


      Working space: HDTV (Rec. 709)
      Clip Interpret footage: HDTV (Rec. 709) 16-235
      Use Display color management
      Simulate Output -> HDTV (Rec. 709)


      The rightmost PLUGE bars of both source files are the same value, and as per SMPTE standard should be just barely visible on a properly calibrated monitor.

      However, with Display Color Management on, the SD pluge reads 10 (on an 8-bit scale), while the HD reads 19 (almost twice as bright). This is manifested visually, the SD pluge is barely visible as it should be, and the HD pluge is considerably brighter. It's easily noticed via screen grabs too:


      Different pluge previews in AE8.png


      My display is calibrated, and that's irrelevant anyway - the pixel value that AE shows should be the same for both comps.



      Has anyone else noticed such an issue? Is this a known bug in AE CS3? Or am I missing something?


      AE on OSX 10.5.8