Matrix settings in A1 custom presets? .... I'm confused at DVinfo.net

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Canon XH Series HDV Camcorders
Canon XH G1S / G1 (with SDI), Canon XH A1S / A1 (without SDI).


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Old February 9th, 2007, 07:26 PM   #1
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Matrix settings in A1 custom presets? .... I'm confused

I've been fooling around with the custom presets since I got the A1, including the numerous ones posted on the forums, but I'm confused about the matrices. What exactly does adjusting the RB Matrix, for example, to +50 do? What about -50? Are there any pictorial representations somewhere such as graphs?

The manual's not very descriptive, and I've only been using the LCD for now, so that may be the reason I don't notice much difference when making adjustments. I've just left them all at zero because I can't tell what they do, but I also noticed a lot of the presets here have adjusted these all around, and those presets looks nice, but I still can't come to a conclusion of what they actually change.
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Old February 9th, 2007, 10:01 PM   #2
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I think it was A.J. DeLange who explained it...but here goes.

Assume you framed a red apple and a green apple.

RG Matrix would translate to "Red to Green." The Red sensor is sensitive to the red wavelengths of light reflected by the red apple. If you went the plus direction, it would mix green into that red apple, if you went minus it would subtract green from the red apple. The green apple would remain unaffected.

GR Matrix would work the same way, but only on the green apple, leaving the red apple unaffected.
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Old February 9th, 2007, 10:09 PM   #3
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That explains it perfectly

Thanks
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