ABSTRACT
Filmmakers used to shoot on film, where the speed of a particular film stock was fixed (ISO), and lights had to be carefully measured with a light meter. Film was shipped off to labs, processed, and returned for dailies and editing. Color timers would adjust the exposure and color of the film. Although shooting on film is still an option for some, most have now shifted to digital filmmaking. Software tools placed inside cameras (as well as in editing and coloring software) allow shooters to help overcome the limitations of digital film acquisition, such as a lack of smooth roll-off in shadows and highlights, image artifacts caused by noise levels, the results of a limited dynamic range, and so forth.
