Polaroid Type 55 reciprocity corrections?

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I've searched Polaroid's web site and the archive, and can't find an answer for this one:

Where can I find a listing of recommended reciprocity corrections as a function of time for Polaroid Type 55 P/N (they don't have to be official; Somebody else's empirical results will serve as a starting point). I'm more interested in the behavior of the negative than of the positive, if they're different.

Also, does anybody out there have a feel for how the Type 55 neg. behaves under multipop flash illumination? There seems to be 0.5-1 stop of loss going from 1 flash pulse to 4. Is this consistent with what others have experienced?



-- Patrick Chase (patrick@sdd.hp.com), July 28, 1999


Patrick, not to cut the answer short, but read Polaroid Photography by Ansel Adams, you should be able to get it at your local library. Pat

-- pat j. krentz (krentz@cci-29palms.com), July 29, 1999.

OR, contact Ron Wisner at sales@wisner.com Pat

-- pat j. krentz (krentz@cci-29palms.com), July 30, 1999.

Generally when I do a multi-pop exposure I start to add an extra pop for every 5 the meter reads. I do this with all film. I am not that surprised that you are losing about a half stop on the Type 55.

-- Ellis Vener (evphoto@insync.net), July 31, 1999.

Polaroid has print tech sheets (hole punched, even) for all film types. I believe they're still available thur their 800 CS No. Ask them why it's not on the WEB site. too if you think of it

-- C MATTER (cmatter@riag.com), August 02, 1999.

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