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wrong color of gray card


PRESTON

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from what I know the gray cardboard for film is a little darker with digital machines, the slightly lighter one is fine
 

Dormeur74

Well-Known Member
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For white balance, there is no wrong cards. But these cards must not be used to measure the reflected light. To have a good reflectance card you need a card like the Kodak 18% chart which reflects 50% of the light. These are quite dark like the card on the right. White balance cards are interesting when their Lab values are known.
Hope you will understand my poor English.
 

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