Re: Flashing: was: Making sense of film curve graphs

MessageHi Kate,

I wonder why A. Adams was using (or included in his book) pre-exposure but
not post-exposure. If he was thinking it's the same thing, he should have
mentioned that pre-exposure can be substituted with post-exposure. But
somehow he doesn't mention this in his book. Of course, I'm not saying as
Adams doesn't mention it, such a thing doesn't exist or everything that
Adams said is correct - we know that it's not... especially when it comes to
alt. processes ;)

----- Original Message -----
From: Kate Mahoney
To: pinhole-discussion@spitbite.org
Sent: Tuesday, November 30, 2004 10:23 PM
Subject: [pinhole-discussion] Flashing: was: Making sense of film curve
graphs

All paper has a threshold where image detail will start to show, and any
exposure less than this will not give any indication that the paper's been
exposed. Flashing the paper brings it up to the threshold. It is a curious
idea that we can fog the paper without it showing but essentially that's
what it is. And because it's just an addition of exposure, like burning-in,
it can be done either before or after the main exposure. There really
shouldn't be any difference!

Cheers
Kate

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Received on Tue Nov 30 13:39:56 2004