Archived posting to the Leica Users Group, 2000/07/25

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Subject: [Leica] Re: Exposing Tri-X at 320
From: "Tim Spragens" <t.spragens@cityweb.de>
Date: Tue, 25 Jul 2000 22:53:16 +0100

> From: Peterson Arthur G NSSC <PetersonAG@NAVSEA.NAVY.MIL>
> 
> I had long understood that underexposing and overdeveloping increases
> contrast.  And somewhere, somehow (I can't recall and can't explain
> it), I had gotten the impression that, conversely, overexposing and
> underdeveloping rather decreases contrast.

This was the lesson drilled into my by my instructors, and seemed 
to be proved true in the lab. Long time since I've read the standard 
texts, but someone would have to blast the memory from my brain 
with solid reasoning and examples. As I recall, overdeveloping will 
also increase grain size.

Please correct a duffer who's been many years away from a lab.

Tim


- --
Tim Spragens
http://www.borderless-photos.com