Response to Film Speed Test

another option: set your camera to the recommended ISO. bracket each shot for the next several rolls of film. evaluate the low values for the best detail you are looking for. more than likely it will be the initial meter reading or one stop more exposure. once you have determined this, set the ISO and leave it. Shoot an entire roll of film of a single full scale subject and develope 1/3 of the film at the recommended time/temp; 1/3 at 10% less time; and 20% less time. make test prints that show the best detail in the high values and maintain good detail in the low values. this will give you the best development time for your film/camera. it works well enough for roll film and the wide range of exposures you might be taking on a single roll of film.

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