A Veteran Film Photographer Is Turning ISO Testing Into an App

One of the crucial aspects of film photography is the ISO of the roll. While the number is printed on the box, the final results can be entirely different. We have heard of instances where some photographs have been overexposed, or the development process resulted in ruined shots. In fact, photographers have learned to test the film, develop it, and depend on the Zone System to get things right. Understanding these challenges, a veteran film photographer on Reddit has decided to utilize a modern...