did you know - photo fact #10106 Posted by Richard Lippert on October 10, 2016 64.5 Inches | Length of a 36 exposure roll of 35mm photographic film from the taped end to the end of the tongue/leader. At 6430.87 sprocket holes per 100 ft roll that's 345.66 sets of sprocket holes! Tags: dyk | did you know Share Share on Facebook Tweet Tweet on Twitter Pin it Pin on Pinterest 0 comments Leave a comment Name Email Message Please note, comments must be approved before they are published