For example, if you're using ISO 400 film, you'll want to set your camera to ISO 800. Double exposure photography with 35mm is simple in principle, but to master it is a whole other subject.

ensuring compatibility with a wide range of 35mm film cameras. While its box speed is set at ISO 125, Harman Red 125 boasts a versatile exposure range from ISO 50 to 400. For optimal results ...