RE: Flashing before or after exposure...

That is how I understand it. Loris

Eric M

-----Original Message-----
From: owner-pinhole-discussion@spitbite.org
[mailto:owner-pinhole-discussion@spitbite.org] On Behalf Of Loris Medici
Sent: 17 November 2004 13:46
To: pinhole-discussion@spitbite.org
Subject: [pinhole-discussion] Flashing before or after exposure...

My understanding is:

Pre-exposure will decrease the treshold of silver grains; that way they
are more easily triggered in exposure so they're able to form an image
later in the development stage. Post-exposure will only intensify
already triggered grains, will not affect the non-triggered grains
(because the treshold was high at the time of real exposure). Therefore,
results of pre or post flashing should be different.

What do you think?

Loris.

> -----Original Message-----
> From: owner-pinhole-discussion@spitbite.org
> [mailto:owner-pinhole-discussion@spitbite.org] On Behalf Of
> Earl and Patty Johnson
> Sent: Wednesday, November 17, 2004 2:30 PM
> To: pinhole-discussion@spitbite.org
> Subject: Re[2]: [pinhole-discussion] Re:
> pinhole-discussion-digest V1 #179
>
>
> ... I agree with George that
> post-exposure flashing should yield the same result as
> pre-exposure flashing.
> ...

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Received on Wed Nov 17 05:56:34 2004