Thread: Green & magenta highlight fringe - why?

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  1. #1 Green & magenta highlight fringe - why? 
    I have attached two stills captured from RedCine. I am concerned with the colored edging along the highlighted woman's cheek. Image one shows a green fringe. Image two (one second later) shows a magenta fringe. Has anyone seen this before? All current release builds were used.

    - Karl
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  2. #2  
    Quote Originally Posted by framework View Post
    Has anyone seen this before?
    Yes.

    Looks like high contrast edge CA. What lens were you using and at what aperture?
    - Jeff Kilgroe
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  3. #3  
    Color Space ?
    Gamma Space ?

    S
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  4. #4  
    Quote Originally Posted by Jeff Kilgroe View Post
    Yes.
    Looks like high contrast edge CA. What lens were you using and at what aperture?

    Thanks Jeff... We used a Zeiss super speed 50mm at ƒ 2.0, clean no filters.
    Why do you think it would shift from green to magenta?

    - k
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  5. #5  
    This looks like lens CA to me, which is not surprising on the Zeiss.
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  6. #6  
    Senior Member Miltos Pilalitos's Avatar
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    This is almost certainly lens CA.

    Yes, i have seen it many times before. Most recently on a shot i had last week which was shot with Zeiss lenses too.
    Miltos
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  7. #7  
    Quote Originally Posted by flameop View Post
    Color Space ?
    Gamma Space ?
    S
    responding to flameop's questions:

    Rec 709 color space
    Redspace gamma

    - k
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  8. #8  
    Yes, it is chromatic aberration from the Super Speed lens not the camera. I've used a few different sets and there was always CA present to a greater or lesser degree- more so the wider the aperture.
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  9. #9  
    Quote Originally Posted by Clint Johnson View Post
    Yes, it is chromatic aberration from the Super Speed lens not the camera. I've used a few different sets and there was always CA present to a greater or lesser degree- more so the wider the aperture.

    Thanks for the responses everyone...
    Any suggestions on the best primes available to minimize this (at wide apertures)? Cookes?

    - K
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  10. #10  
    Senior Member Barry Gregg's Avatar
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    I have CA problems with still images on my Canon 1Ds MkIII all the time. The Adobe RAW processor has tools that can often remove the purple/green or red/blue fringe. Although not always.

    No tools for Red that will remove CA fringe?
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