Format standards thumb|right|upright|Standard 16 mm film with basic frame and perforation dimensions, double-perf Perforations Two perforation pitches are available for 16 mm film. One specification, known as "long pitch", has a spacing of and is used primarily for print and reversal film stocks. Negative and intermediate film stocks have perforations spaced , known as "short pitch". These differences allow for the sharpest and smoothest possible image when making prints using a contact printer.
Format standards thumb|right|upright|Standard 16 mm film with basic frame and perforation dimensions, double-perf Perforations Two perforation pitches are available for 16 mm film. One specification, known as "long pitch" has a spacing of and is used primarily for print and reversal film stocks. Negative and intermediate film stocks have perforations spaced , known as "short pitch". These differences allow for the sharpest and smoothest possible image when making prints using a contact printer.