17.5mm
AKA
(None / See Fact3)
Era
1898–1900s
Format
analog
Developed by
Various
(Max) Capacity
Various
Size
17.5mm
Perforations
2
Frame size picture area
10 x 16mm
Fun facts
- The first use of this format was with the Birtac, which was a combined projector and camera
- This format could be created by cutting strips of 35mm film in half
- Several formats were developed to use this size, eight different kinds of film stock: Birtac, Biokam, Hughes, Gaumont, Clou, Duoscope, Movette, and Pathé Rural
