17.5 mm film was a film gauge for as many of eight types of motion picture film stock, generally created by splitting unperforated 35 mm film.[1][2]
- ^ "Historic sub-35 mm film formats and cameras". Retrieved 12 August 2016.
- ^ "17.5 millimeter film format". Australian Museum Of Motion Picture & Television. 25 July 2014. Retrieved 12 August 2016.