Re: Type 55 reciprocity adjustments

Thank you Adrian, that is the post I remembered.
Howard Wells

Adrian Joyner wrote:
>
> Will this copy of an earlier email help:
>
> Adrian Joyner
> Clevedon
> England
>
> Laura
>
> Excuse me for butting in. I regularlyuse Type 55 at ISO 25 and use the
>
> following reciprocity corrections:
>
> Indicated exposure Correction factor Final exposure
>
> 8 seconds 2x 16 seconds
>
> 16 seconds 2.5x 40 seconds
>
> 32 seconds 3x 96 seconds
>
> 64 seconds 4x 256 seconds
>
> 2 minutes 5x 10 minutes
>
> 4 minutes 6x 24 minutes
>
> Hope this helps.
>
> Regards
>
> Derek Watkins
>
> ----- Original Message -----
> From: "Howard Wells" <sandwell@earthlink.net>
> To: <pinhole-discussion@pinhole.com>
> Sent: Wednesday, February 20, 2002 3:44 PM
> Subject: [pinhole-discussion] Type 55 reciprocity adjustments
>
> > Late last year a list member published a chart of reciprocity
> > adjustments with Type 55 Polaroid. I printed it out, lost it, and now
> > can't find it in the archives. Some interior work has taken me into
> > uncharted (to me) realms with this wonderful material. Help and thanks.
> > Howard Wells
> >
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Received on Wed Feb 20 19:41:57 2002