John,
TXP = Tri-X Pan Professional. Shoot it at 320 if you'll be printing using an
enlarger with a diffusion, cold light or color head. If you print with a
condenser enlarger, shoot at 640. Either way, develop for 8 minutes in
straight D-76 at 68F. (For some reason, Kodak doesn't recommend souping this
emulsion in D-76 1:1.) If you're scanning, you'll probably be happier shooting
it at 320, particularly if your scanner has a dynamic range of 4.0 or better.
Plus-X is finer-grained than Tri-X. It's great in D-76 1:1, and maybe even
better in Rodinol 1:50. It's fine-grained enough that I'm scanning negatives
at 5400 dpi and can barely resolve the grain.
Walt
--
"Anything more than 500 yards from
the car just isn't photogenic." --
Edward Weston
-------------- Original message ----------------------
From: John Hudson <OM4T@xxxxxxxxxxx>
>
> Walt ...
>
> The narrow band sticky wrapper shows "TXP" only. I assume that this is the
> lower case "Professional" version. Complicated .....what's the difference
> between the "320TXP" and "TXP" versions?
>
> Elsewhere in the deep freezer I have one roll of Tri-X 400 film labelled
> "400TX" and one roll of Plus-X labelled "125PX".
>
> I assume the Plus-X is the finer grained film.
>
> John
>
>
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