Yeah, reciprocity failure is one reason I rarely bothered with long
exposures on film. It required either experimentation or consulting
of a chart for the specific film to determine the correct exposure.
What a meter would read as a 5 minute exposure would actually require
ten minutes or something like that, and the longer the metered
exposure the more compensation was necessary. With digital if it
says 10 minutes you expose for 10 minutes, and the colors don't go
funky as with color film.
Rich
On Nov 20, 2008, at 10:36 PM, Emily L. Ferguson wrote:
Apparently there is no reciprocity failure in digital. Apparently
it's a characteristic of film, or something like that. I did a
shot quite a few years ago which required at least 20 seconds or
something like that and it came out all blue (dawn shot) and
checked in with a photo forum I used to frequent. There was some
explanation, but I'm not a techie, so I don't remember the details.
--
Emily L. Ferguson
mailto:elf@xxxxxxxxxxxxxxxxxx
508-563-6822
New England landscapes, wooden boats and races
http://www.landsedgephoto.com
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