Portra NC 160 Reciprocity Failure?
does anyone have experience with shooting portra nc 160 or 400 at night? A link to a chart or graph of the failure compensation curve would make my life.
does anyone have experience with shooting portra nc 160 or 400 at night? A link to a chart or graph of the failure compensation curve would make my life.
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Rather than believe published charts I would take a test roll and shoot under the intended conditions and bracket the exposures widely. Then reviewing the prints and negatives will reveal which exposures you like.
At this site:
http://www.f295.org/Pinholeforum/forum/Blah.pl/Bla...
I found the following reference to Kodak Document E31.pdf which (the writer said) states: No reciprocity or color correction needed at 10 sec. and NR (not recommended) at 100 sec.
I didn't do a Search for the Kodak document.
According to Kodak's spec sheets, no correction is needed down to a second. For longer than that, test to be sure.