> From: Tom Pfeiffer [mailto:[EMAIL PROTECTED] > > ISO is the measure of sensitivity, so ISO 100 is pretty much > ISO 100 whether > you're talking film or digital. One may have more dynamic > range or other > characteristics, but the ISO rating is the sensitivity. > > Tom P. > The exception to this that may be relevant to the original query about night photography is when reciprocity failure occurs. This is generally not a problem for digital bodies but a film that is rated at 100 ISO in normal lighting may well only be 50 ISO or less under low light conditions. The only way to know is to check out the data sheet for the film (I think you can download them from Fuji or Kodak's web sites these days),
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