Can someone list a good source (on-line or otherwise) for Stouffer
Step-Wedge products, 21 et-all?
Appreciatively,
Robert
>
> >> Actually Dave, testing something like that where the difference might
> >> be
> >> subtle, I wouldn't use 2 step tablets, but cover half the width of one
> >> step tablet with the material. Step tablets, at least the 2115 I use,
> >> have variations from strip to strip. Of course sometimes they don't,
> >> but
> >> .... often they do. Using the same strip is easy & (fairly)
> >> definitive.
> >>
> >> I recently tested saran wrap and a sheet of clear plastic, by the way.
> >> Both showed same difference...
> >>
> >> But speaking of step tablets, Tamara should get one... then she'll
> >> know
> >> what if anything she's doing wrong. For a beginner to judge "dense
> >> negative," or "deep shadows," or whatever is nearly impossible... In
> >> fact
> >> it's not easy for old timers... development of the film can give
> >> different colors and the effect very deceptive.
> >>
>
>
> what do u recommend for me? i have a nice densitrometer that i got
> when my lab closed (originally 3g) so i can do some testing... i am
> doing albumen printing, which requires an AVERAGE density of 1.7 to
> 2.0, but i don't really know how to test that.
> adam.
Received on Wed Feb 25 22:02:22 2004
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