Thread: Moiré pattern on Ursa 4k footage, but not on 1080 VA prores 422 - What's the deal?

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  1. #1 Moiré pattern on Ursa 4k footage, but not on 1080 VA prores 422 - What's the deal? 
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    Just got done with my 3rd shoot with my Ursa 4.6k - interviewed some guys at a refinery and the special outfits they wear produced some moiré on the 4k image, (show raw 4:1) - my video assist was recording 1080 prores versions via the camera output and even though they are 1080 they didn't exhibit the same moire patterns.

    Does ProRes 'soften' the image to the point it doesn't show the moire or what? Because the 1080 versions still look as sharp as the 4k version (without the extra pixel canvas of course) - just doesn't have the same amount of moiré.
    Ursa 4.6k, Pocket Cinema 4k, BMCC, BMPCC, GH4+Metabones, GoPro Hero4 Black, Phantom 2, Canon T3i, Lots of glass.

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  2. #2  
    I believe it has something to do with the way the image is being debayered, it's also why the new Braw doesn't have as much moire anymore (although Braw also seems to have less detail).
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  3. #3  
    Senior Member Frank Glencairn's Avatar
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    Detail goes out of the window, with massive compression - nothing new.
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