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Trevar Cushing

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Posts posted by Trevar Cushing

  1. In very crude, imprecise layman's terms, color subsampling is when the red and blue channels are reduced in resolution compared to luminence (which contains the green information) in order to reduce bandwidth / data requirements in recording.

     

    "4:1:1" therefore means that red and blue have been reduced to 1/4 of their full resolution compared to luminence/green. "4:2:2" means that red and blue have half the resolution and "4:4:4" means that each color channel has equal resolution.

     

    Color subsampling can be applied to a standard-def or high-def signal.

     

    Now for a more accurate description, read this:

    <a href="http://en.wikipedia.org/wiki/Chroma_subsampling" rel="nofollow" target="_blank">http://en.wikipedia.org/wiki/Chroma_subsampling</a>

    http://www.nattress.com/Chroma_Investigati...omasampling.htm

     

    $5000 would be considered a super cheap camera compared to broadcast video equipment...

     

    All the cameras in that range would be 4:1:1, whether DV or HDV. You're probably looking at a Panasonic DVX100B or Canon XL2 in standard def (assuming you want 24P), unless you want an HDV camera.

     

     

    Michael,

    Is it possible to up the Chroma or anything similar when shooting in 4:1:1 (because of miniDV). I'm just trying to figure out how to keep the reds from bleeding so much. Is there anything that can be done so that the reds don't look like they are crawling. I have a Panasonic PVGS500 and don't know what to do about those reds getting crazy looking.

    Reason being is that the footage from the Panasonic PVGS500 is going to be edited together with footage from a HVX200. Is there any preparations that can be done to the PVG to get the reds close to the HVX??

    Thanks,

    Trevar Cushing

  2. In very crude, imprecise layman's terms, color subsampling is when the red and blue channels are reduced in resolution compared to luminence (which contains the green information) in order to reduce bandwidth / data requirements in recording.

     

    "4:1:1" therefore means that red and blue have been reduced to 1/4 of their full resolution compared to luminence/green. "4:2:2" means that red and blue have half the resolution and "4:4:4" means that each color channel has equal resolution.

     

    Color subsampling can be applied to a standard-def or high-def signal.

     

    Now for a more accurate description, read this:

    <a href="http://en.wikipedia.org/wiki/Chroma_subsampling" rel="nofollow" target="_blank">http://en.wikipedia.org/wiki/Chroma_subsampling</a>

    http://www.nattress.com/Chroma_Investigati...omasampling.htm

     

    $5000 would be considered a super cheap camera compared to broadcast video equipment...

     

    All the cameras in that range would be 4:1:1, whether DV or HDV. You're probably looking at a Panasonic DVX100B or Canon XL2 in standard def (assuming you want 24P), unless you want an HDV camera.

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