Re: Polaroid 545 back

My experience with pinhole color polaroid is that you get terrible ugly
green color shifts.
----- Original Message -----
From: "mdelman" <mdelman@rochester.rr.com>
To: <pinhole-discussion@pinhole.com>
Sent: Monday, September 03, 2001 3:57 AM
Subject: Re: [pinhole-discussion] Polaroid 545 back

> Derek:
>
> Do you have similar exposure time information for other ISO's of polaroid
> film B&W and color) Thanks.
>
> -Mark
> ----- Original Message -----
> From: "Calfee, Laura" <LCalfee@Central.UH.EDU>
> To: <pinhole-discussion@pinhole.com>
> Sent: Wednesday, August 29, 2001 5:46 PM
> Subject: RE: [pinhole-discussion] Polaroid 545 back
>
>
> > just what I was looking for. Thanks so much!
> >
> > > -----Original Message-----
> > > From: Derek Watkins [mailto:100015.635@compuserve.com]
> > > Sent: Wednesday, August 29, 2001 8:59 AM
> > > To: 'INTERNET:pinhole-discussion@pinhole.com'
> > > Subject: RE: [pinhole-discussion] Polaroid 545 back
> > >
> > >
> > > 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
> > >
> > > ----------
> > > From: INTERNET:pinhole-discussion@pinhole.com
> > > Sent: 27 August 2001 22:13
> > > To: "'pinhole-discussion@pinhole.com'"
> > > Subject: RE: [pinhole-discussion] Polaroid 545 back
> > >
> > >
> > > Bill, When you rate Type 55 at ISO 25, is there a need to
> > > calculate for
> > > reciprocity failure. If so, how do you do so? I've been
> > > using Type 55 with
> > > my Leonardo with some good results but I've just been guessing at the
> > > exposures. I'd appreciate any suggestions you have.
> > > Laura
> > >
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>
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Received on Mon Sep 3 07:47:59 2001