[pure-silver] Film developer temperatures??
- From: David Swinnard <davidswinnard@xxxxxxx>
- To: pure-silver@xxxxxxxxxxxxx
- Date: Sun, 20 Mar 2005 08:28:00 -0800
I grew up using 20C (68F) as a standard temp. for film developing, and
in my non-southern (NA centric view) location seldom had issues
maintaining it, summer or winter. The cold water tap always delivers
sub-20C water here. For unknown reasons, I started to wonder whether
there are any significant benefits to using other (higher) temperatures.
The only obvious one I can think of is shorter dev. times though I've
not yet been rushed enough to pursue a higher temp. for that reason
alone. (My previous reluctance to move chemical temps. beyond room (20C)
temperature is dealt with by the JOBO CPA-2 now available to me.
Sometimes it just makes a fine chemical-tempering unit rather than a
developing system.)
So, are there any compelling reasons to re-think my dev. temp.
strategies? I seem to recall reading somewhere that
Perceptol/Microdol-type formulations benefit from temps in the 24C (75F)
range but can't remember the reasoning. What about other developers?
Will I gain anything, beyond shorter dev. times? Are there implications
for sharpness, grain, etc. with higher dev. temps? (keeping them in the
realm of the reasonable)
I frequently don't bother with the JOBO for a few rolls of film and use
my old SS Nikor tank and reels. sheet film is always in the JOBO now.
(In my darkroom, over the last few years, you would likely find devs.
like my regularly used XTOL (1+3, never a problem had), FX-39 (when I
can get it), Rollo-Pyro (from B+S), Perceptol (at 1+3) and even Pyrocat
HD once. Films typically TMY or HP5 in sheet and Acros, TMX, Delta 100
in 35mm/roll formats.)
Just curious, Dave
=============================================================================================================
To unsubscribe from this list, go to www.freelists.org and logon to your
account (the same e-mail address and password you set-up when you subscribed,)
and unsubscribe from there.
Other related posts:
