Re: Type 55 reciprocity adjustments

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 17:02:02 2002