Help, purple Lightroom pixels!

Discussion in 'Digital Photography' started by heinzeee, Oct 23, 2009.

  1. heinzeee macrumors newbie

    heinzeee

    Joined:
    Oct 23, 2009
    Location:
    Parker, Colorado
    #1
    Hello, first time forum user and new to Mac (one year). I have Lightroom installed on my Imac G5, 1.83ghz, 17in. When importing pictures, purple pixels show up in some highlight areas. This is not happening in camera, the RAW files and JPEGs look fine. In fact they can be viewed with any OS picture viewer and no purple pixels. Not until Lightroom gets ahold of them do they appear. Could this be display settings or is my Imac just too old for Lightroom? This is happening on windows, people's faces, etc. Please advise.

    Thanks in advance.
     
  2. Edge100 macrumors 68000

    Joined:
    May 14, 2002
    Location:
    Where am I???
    #2
    In the Develop module, make sure you have the histogram displayed in the top right corner. See the little triangles in the top right and left corners of the histogram? Click the one in the top right; does that make the purple pixels go away?

    Those triangles are there such that when you click them, they show you exactly which pixels are clipped (the left hand one tells you which pixels are completely black...i.e. shadows clipped).
     
  3. heinzeee thread starter macrumors newbie

    heinzeee

    Joined:
    Oct 23, 2009
    Location:
    Parker, Colorado
    #3
    Nope, I had thought that might be it but these are definitely purple, not red like the clipped highlights. I have seen them both on the same image.
     
  4. Edge100 macrumors 68000

    Joined:
    May 14, 2002
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    Where am I???
    #4
    Hmmmm, are the purple pixels there in a 1:1 zoom? I had this issue the other day with some red pixels in one image. They were in my catchlights at normal zoom, but disappeared at 1:1. Not sure what caused them, but they're not in my final output JPEGS so I can live with them.
     
  5. heinzeee thread starter macrumors newbie

    heinzeee

    Joined:
    Oct 23, 2009
    Location:
    Parker, Colorado
    #5
    I haven't tried that, but this fringing is still on my saved JPEGs. It's a bummer.
     

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