Use the recommended exposure of 1/60 at f5.6 with a 25 filter as a starting point. Use the development time for plus-x 120 film as a starting point. If your film is like the batch I got, there is no information in the box. I contacted Konica and they sent me the technical sheet for 750 and I can fax it to you if you would like.(posted 9163 days ago)