At 10:11 PM +0100 7/19/01, Keith Green wrote:
>What I meant, but explained badly, was is the film being fogged from behind,
>through the plastic camera back. I have seen this suggested before, on this
>list I think, that infra-red can penetrate the plastic, but don't ask me how
>true it is.
Hm. You know, looking over my IR prints again I tried to engage my
brain, and noticed that the patches on the photos around the pressure
plate cutout are, in fact, *darker* than the surrounding area. Not
lighter. Which lends some credence to the notion that the fogging
light is coming through the thick plastic camera back, improbable as
that seems.
But on 17 Jan 2001, Willem-Jan wrote:
"And throwing this myth on one pile with the cut-out rectangles used
in (databack-origin) pressure plates only makes things worse....it's
the lack of IR-reflection through the film, thrown back from the
pressure plate onto the film again, that causes a shadow in this area
(=highlight in final print, since we are talking about negative
film....makes one wonder what the effect is on direct reversal
development)."
Something doesn't make sense here. I'm going to have to see if I can
get hold of that Rebel again.
- Neil K.
--
49N 16' 123W 7' / Vancouver, BC, Canada / [EMAIL PROTECTED]
The satin finish provides darkly deviant good looks
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