[pure-silver] Re: developing Royal Pan sheet film.
- From: "Richard Knoppow" <dickburk@xxxxxxxxxxxxx>
- To: <pure-silver@xxxxxxxxxxxxx>
- Date: Fri, 1 Apr 2011 13:27:24 -0700
----- Original Message -----
From: "Bogdan" <bkarasek@xxxxxxxxxxxx>
To: <pure-silver@xxxxxxxxxxxxx>
Sent: Thursday, March 31, 2011 4:52 PM
Subject: [pure-silver] developing Royal Pan sheet film.
Hello all,
I was doing an inventory of my darkroom freezer and found
an unopened
box of 100 4x5 sheets of 4141 Royal Pan film. Also a box
of 3¼x4¼ Royal
Pan; have holders and Graphic cameras for this size.
Why waste good film , I say...
Any ideas as to development times and possible ASA? A
Google search
gives 400 asa and 1250 asa for this film.
I was thinking that maybe I should develop in Diafine.
Any and all suggestions are welcome.
Cheers,
Bogdan
A further note (I always forget something). The 1957
Kodak handbook was published before the ASA changed their
measuring method from the original Kodak method with a one
stop fudge factor to the simpler modified DIN method, which
did not have the fudge factor. The difference in speed is
one stop so by modern ISO methods Royal Pan film would have
an index of 400.
I am not sure what applies to Royal-X Pan. The film was
so odd that Kodak may not have used the old ASA method for
recommended speeds. If they did it would be ISO-2500. It was
foggy when new and I think had very short shelf life.
--
Richard Knoppow
Los Angeles, CA, USA
dickburk@xxxxxxxxxxxxx
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