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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