Hi Paul et al, I found this informative site a while back, it has tests by an astrophotographer of slide & print film. The main thing he is testing for is colour balance during long exposure & reciprocity failure. He reaches some interesting conclusions !!!! Enjoy, Rob Robert Gillespie http://www.connecti.com/~rreeves/filmtest.htm -----Original Message----- Paukl wrote...... Next time I do an interior shoot, I'll use professional film that has great reciprocity performance. The dealer suggested Reala 100. Anyone else care to weigh in with an opinion? - This message is from the Pentax-Discuss Mail List. To unsubscribe, go to http://www.pdml.net and follow the directions. Don't forget to visit the Pentax Users' Gallery at http://pug.komkon.org .