Yes, the Kodak gray card has 18% reflectance, but Kodak has acknowledged
that one should meter off the card and open up a half stop, because
meters are calibrated to 13%, and its instructions for use are to
changed soon if not already done. This comment based on fairly recent
reports by Ctein on his correspondence with Kodak.
Bob
Tom Rittenhouse wrote:
>
> Strange, Kodak seems to think their gray card has 18%
> reflectance. 18% is the average reflectance taken from many
> scenes. Where do you come up with something different?
> --Tom
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