Cinematography — Sound Motion-Picture Camera Cartridge, 8 mm Type S, Model 1 — Cartridge-Camera Interface and Take-Up Core Drive — Dimensions and Specifications
SMPTE Journal · 1981
Dimensions are measured from the zero plane defined by Surfoces 1, 2. and 3. (See Sec.2.8, Fig. 3, and Note 2.) 2.13 The plus values given for the pressure pad film surface flatness tolerances ore to be directed toword the lens.(See Note 2.) 2.1 4 Surface 4 of the cartridge pressure pad and Boss 4 of the camera aperture ore established to aid in seating the cartridge pressure pad to the comera aperture plate.They serve no function once the pressure pad is in operating position.