varjag Posted September 22, 2005 Share Posted September 22, 2005 Anyone has an idea of what is the reciprocity failure for Fortepan 400 like, for exposures in the range of a few seconds to one minute? I couldn't find it at the official site. Link to comment Share on other sites More sharing options...
silent1 Posted September 22, 2005 Share Posted September 22, 2005 It's probably safe to put it the same as Tri-X or HP5+, and bracket a bit -- most conventional grain films have almost the same reciprocity failure curve for a given speed (for instance, Fomapan 100 seems very happy with the same corrections I'd give Plus-X). Link to comment Share on other sites More sharing options...
al_divenuti Posted September 22, 2005 Share Posted September 22, 2005 All the Fortepan film boxes I have purchased include a small datasheet with reciprocity correction data. If you buy the film, you should have the information you are looking for. Link to comment Share on other sites More sharing options...
jon_shiu Posted September 22, 2005 Share Posted September 22, 2005 Here is a link:<br> <a href=http://www.jandcphotography.com/jandcdata.htm>http://www.jandcphotography.com/jandcdata.htm</a> Link to comment Share on other sites More sharing options...
varjag Posted September 26, 2005 Author Share Posted September 26, 2005 Thanks to everyone for responses. I'll use the data from the link Jon provided as a starting point. Al, unfortunately my boxes of Fortepan 400 have no mention of reciprocity correction. Link to comment Share on other sites More sharing options...
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