Film-Plane Indicator; Accessory Shoe And Sync-Cord Terminal - Nikon FM3A Instruction Manual

Film-Plane Indicator

... This film-plane indicator can be used as the measurement standard when you must know the
actual camera-to-subject distance (e.g. in close-up photography).
... The exact distance from the lens-mounting flange to the film plane is 46.5mm.

Accessory Shoe and Sync-Cord Terminal

Accessory Shoe
Sync-Cord Terminal
30
• The mark shown on the upper
panel of the camera indicates the posi-
tion of the film plane inside the camera.
• A Nikon cordless-type speedlight can
only be connected by attaching it to
the accessory shoe.
• This accessory shoe is equipped with
a safety lock mechanism (a lock hole)
to prevent slippage.
• This camera has a sync-cord terminal
(with a screw to prevent slippage). To
use a sync-cord, connect it to this sync-
cord terminal ("X" contact only avail-
able as sync contact).