If equipment fails to operate, refer to trouble-
Section I. OPERATOR'S CONTROLS AND
2-1. Camera Controls and Indicators
a. Camera Controls. The following list itemizes the
c a m e r a controls used by the operator and describes
t h e i r function.
Facilitates movement of aperture
Preset aperture ring
r i n g for setting diaphragm of
Cable release socket . . . Permits attachment of cable re-
lease to shutter for remote trip-
ping of shutter mechanism.
Film speed set ring . . . . Spring-loaded, two-position con-
trol for setting ASA speed.
up . . . . . . . . . F a c i l i t a t e s setting
ASA film speed
in ASA film in-
F a c i l i t a t e s setting
of shutter speed.