> That was my instinct, Guillermo, and thanks for your > answer. > > Funny thing is, I tried it yesterday at a minute and a > half--my rough calculation, which was close to your > suggested 84.5 seconds--and it completely overexposed > the film. It was all white (using Polaroid Type 55). > Then I tried it indoors in a setting that I know from > experience needs about 45 minutes. I gave it about an > hour--very little more than what I would normally—and > the exposure was more or less correct. In other words, > it was behaving very much like the extension had no > effect at all. Wonder why? > > Colin
All this talk about long exposures and reciprocity have made me think of trying a indoor low light pinhole pic. For what I want to do I'm guessing the exposure should be about an hour long. No one mentioned shorting development times with these long exposures, do you? Seems if you follow manufacturers charts if you expose the film long enough you wouldn't need to develop it! LOL Regards, Bill K
