Gray cards : the 12% - 18% controversy

Started Apr 13, 2013 | Questions thread
xpatUSA
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Re: Gray cards : the 12% - 18% controversy
In reply to Roland Karlsson, Apr 14, 2013

Not only that, ISO gives what they call "latitude" so, when you set ISO 100 on the camera, it could be anything between about 75-125. A good indication might be to shoot a gray card metered to zero plus half a stop and check the histogram (with as little processing as possible, esp. brightness and saturation) - it should show a narrow distribution in middle of the horizontal axis.

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