Re: [pinhole-discussion] Reciprocity failure with paper

hour exposure, not much before that. - Original Message - From: Guy Glorieux guy.glori...@sympatico.ca To: Pinhole List pinhole-discussion@p at ??? Sent: Sunday, December 16, 2001 1:43 AM Subject: [pinhole-discussion] Reciprocity failure with paper Hi everyone, Does anyone have

[pinhole-discussion] Reciprocity failure with paper

Hi everyone, Does anyone have information about reciprocity failure with paper. I have to print large format prints which require long exposures (several minutes) and can't open the lens without creating vignetting on teh edges of the print. It would help if I could know more about the

Re: [pinhole-discussion] reciprocity failure of paper negs.

Bill, I don't know if I can give you specifics, but my longest successful exposure has been 47 days. I tried an exposure in a basement area for ten days and the result was too faint so i put the date I began the next exposure and kind of forgot about my camera for a while. When I remembered it,

RE: [pinhole-discussion] reciprocity failure of paper negs.

:) Gregg - Original Message - From: Guy Glorieux To: pinhole-discussion@p at ??? Sent: Thursday, November 29, 2001 6:47 AM Subject: Re: [pinhole-discussion] reciprocity failure of paper negs. Bill Erickson wrote: I'm planning an image of a dark corner in an old building. The exposure

Re: [pinhole-discussion] reciprocity failure of paper negs.

I get the message. More is better, but don't forget to go to bed. - Original Message - From: Guy Glorieux To: pinhole-discussion@p at ??? Sent: Thursday, November 29, 2001 6:47 AM Subject: Re: [pinhole-discussion] reciprocity failure of paper negs. Bill Erickson

Re: [pinhole-discussion] reciprocity failure of paper negs.

reciprocity nightmare ' great stuff , thank you...regards mickey a happy life is made up of many happy moments

Re: [pinhole-discussion] reciprocity failure of paper negs.

Bill Erickson wrote: I'm planning an image of a dark corner in an old building. The exposure calculates out to about five days with a paper negative. At what exposure time does one begin to run into reciprocity failure with paper, and what are the parameters? Bill, I wrote a little piec

[pinhole-discussion] reciprocity failure with paper negaties.

I've been doing some multiple hour exposures on kodak polymax paper and I got to wondering at what length of exposure with a paper negative do you need to begin to factor in reciprocity failure. My results suggest that the answer may be around 1 hour. Any ideas?