Long exposure - colour neggreenspun.com : LUSENET : Large format photography : One Thread
Does anyone have any experience using Fuji NPS160 for exposures longer than the recommended maximum 2 seconds?
If so, what are the reciprocity effects and how do you compensate?
-- Stephen Vaughan (email@example.com), March 26, 2002
I do not use any Fuji film for exposures over 1 second, due to ugly color shift. I must recommend Kodak Portra VC 160, which maintains true color for exposures in excess of one hour. Times of course still get way longer. I would presume that NC is likewise color safe.
-- Christopher Condit (firstname.lastname@example.org), March 26, 2002.
although i normally use kodack nc too for long exposures, it happened to me that i only had with me fuji nps films. i exposed them till 30sek and the pictures looked good to me.....difficult to say if they shift the color somehow...on neg. material. i like the nps film for its soft gradation.
-- rainer viertlböck (email@example.com), March 26, 2002.
I too have used NPS with long exposure times (2 - 10 minutes) and can't say I've noticed any problems. It's not like transparency film, where slight color shifts are noticeable and I ballparked reciprocity by giving 1.5x measured exposure. I don't shoot color critical subjects, so can't really comment on color shifts, but if it existed, it was easy enough to compensate for in the printing process.
-- Pete Caluori (firstname.lastname@example.org), March 26, 2002.
have you tried Fuji NPL or Kodak Portra 100T? These are designed for long exposure with a 3200K balance.
-- Ellis Vener Photography (email@example.com), March 27, 2002.
portra kodak 100t looks fantastic for warn light situations...as the 64t slidefilm too. the npl?......i dont remember anything bad or good....
-- rainer viertlböck (firstname.lastname@example.org), March 27, 2002.