Size #3 shutters

Available size #3 shutters are Compur #3, Copal #3, and Prontor #3.

This is one of the most commonly used shutter sizes.

Their main dimensions are:

  • Front lens cell thread: M58x0.75
  • Rear lens cell thread: M58x0.75
  • Rear mount thread: M62x0.75
  • Lensboard hole diameter: 65mm