Argus cosina 704 - Electric Eye Exposure System; Installing the Electric Eye Battery; Checking Battery Condition

BATTERY COVER
COUVERCLE DE PILE BOITIEF
BATTERY COMPARTMENT
COMPARTIMENT POUR PILE
LENS OPENING INDICATOR WARNING ZONE
INDICATEUR-DIAPHRAGME ZONE-AVERTISSEMENT
//.
ELECTRIC EYE SYSTEM
This system is powered by a 1.35-volt mercury battery. (One is sup-
plied with your camera in a slot in the plastic packing.) To install
the battery, first turn the battery cover in the direction of the arrow
approximately one turn to the open position. Insert the battery in
the compartment positive (+) side facing up. Replace the cover by re-
versing the removal procedure, and pressing down slightly while
turning to CLOSE.
Instead of weakening slowly, this kind of battery generally fails al-
most immediately when it becomes exhausted. To check your bat-
tery’s condition, look through the Data Scope viewfinder while the
camera is pointed toward any brightly lighted scene. (Be sure the
camera is set on AUTO.) If the battery is still good, the electric-eye
mechanism will respond rapidly, showing a movement of the LENS-
OPENING INDICATOR away from the red WARNING ZONE.