From: Carl Weese (cweese@earthlink.net)
Date: 07/25/02-12:18:55 AM Z
David,
Stauffer test strips will work fine for testing POP paper. They're
economical and easily available from Tri-Ess Chemical. The difference
from Kodak test strips is that Stauffer is less expensive.
http://www.tri-esssciences.com/
They have 21 steps at a .15 density unit interval which is more total
range than even self-masking POP materials can record.
---Carl
David Eastman wrote:
>
> Help!
>
> I am beginning to experiment with POP emulsions but
> have no suitible negatives (nor large format
> camera)... nevertheless, I want to make meaningful
> tests using a step tablet.
>
> 1. Does any one know if there is a suitible step
> tablet for testing Silver Gelatin P.O.P. paper (eg.
> Centennial)?
>
> How would it differ from tha Kodak #2 step tablet?
> Could it perhaps be hand made ? Any advice is
> welcomed!
> (How many steps? From film base density to what
> maximum density?)
>
> 2. Does any one know if the American Museum of
> Photography of Philadelphia 2 Pa. is still in
> existance? Is Louis Sipley still alive? (I know Kodak
> has a lot of his collection so perhaps they bought
> it...)
>
> 3. Does any one have a current address or e-mail , URL
> etc. for Amphoto?
>
> 4. Does any one have a current address or e-mail , URL
> etc. for The American Photographic Publishing Company?
>
> 5.Does anyone know if Amphoto and The American
> Photographic Publishing company are the same thing?
>
> Thanks for you help!
>
> Ray
>
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