Manual Film-Speed Setting - Nikon FM3A Instruction Manual

Manual Film-Speed Setting

Tips
Set the film speed manually in the following cases:
1) When using non-DX-coded film.
2) To intentionally change the light sensitivity of DX-coded film in order to obtain
special effects when developing.
... The film speed can be set manually in the range of ISO 12 to 6400.
Setting the film speed
100
Details on readings of the film-speed index
26
• Pull and rotate the film-speed setting
ring and set it to the film speed of the
film in use.
• The corresponding film speeds for the
dots between numbers on the film
speed index are indicated in the illus-
tration.