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Confusions about using Kodak Gray Card
Q1: I want to calibrate my camera meter using a Kodak gray card. According to the instruction, I find that I have to use the card outdoor, but I dont understand why this is nessary. Why I can not use it indoor if I can guarantee the card dont reflect glare? And, I still dont understant why I can not use it under a full shade? Q2: Kodak ask me to open up 1/2 stop for the meter reading, I think this is due to that the 12.5% is used as natural reflectance by ANSI. But I doubt whether the 12.5% is really used by most camera vendors in the market. (I am using a Nikon F80, any know what the F80's viewpoint about netural reflectance). Q3: For copy work, Kodak suggest me to *close* down 1/2 stop for the gray card reading. That sounds so weird! What's the reason behind it? Any help would be appreciated! -- %% (fortunes) Q: How did you get into artificial intelligence? A: Seemed logical -- I didn't have any real intelligence. |
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"Steven Woody" wrote...
Q1: [...] I strongly recommend you to repost your question to rec.photo.EQUIPMENT.35mm. This is .marketplace., people post for sale and want to buy adverts here and are unlikely to answer your question. Victor |
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