FotoDave@aol.com
Date: 02/15/03-12:01:28 PM Z
I think something beside the wedge is wrong. It is true the the wedge cannot
be completely accurate to the theoretical value, but a difference in 0.2
(more than 1/2 stop) or 0.3 (1 full stop) is too much.
I don't have a Macbeth so I cannot help in the actual usage. Is this a
transmissive-only densitometer? Are you sure you are not mistakenly using the
reflective mode?
Dave S
> If calibrated with the ST 34 at the logD 2.4 position the meter of course
> exactly reads 2.4. So far, so good. But going to position 1.4 of the wedge
> it reads 0.2 less and going to 3.4 it shows 0.3 more than it should. How
> can this be explained? Can it be caused by an inaccuracy of the wedge?
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