----- Original Message -----
From: "Tom Rittenhouse" <
Subject: Re: MZ-S questions
> 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
I have heard exactly the same thing from a Ryerson Polytech
Graduate. I don't know if it is urban myth or truth though. Gray
cards do reflect 18% of the light, but whether that is what
meters are calibrated to is another subject entirely.
William Robb
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