Jul 21, 2008 · I have added a uple new geocache log sheets for 35mm film canisters. This has been one of the most requested size log sheets, so here it is. This log sheet is 1.5 inches (3.81cm) wide and should fit in a variety of film canisters. It is available with either a lor or black Geocaching.com logo. This log sheet features a new cleaner layout.