Mamiya 645DF, User Manual

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2.3 Sleep Mode
The camera’s power is switched on when the shutter release mode
selector is set to S, C or M.UP. In order to prevent the camera’s batteries
from discharging, sleep mode is automatically entered if no operations
are performed for a specific period of time while the power is ON (with
exposure metering status maintained).
In sleep mode, operating the shutter button or a function setting button
restores power ON status.
In sleep mode, the external LCD screens are not active, only the marks
shown in the figure are displayed. (These marks appear in program AE
mode.)
1. Battery life of the originally supplied batteries is dependent on storage
conditions.
2. Blots and fingerprints on the battery terminals may cause a loose
connection and corrosion. Wipe them off before loading the batteries.
3. It is advised to carry spare batteries in remote or foreign locations.
4. Battery performance decreases in low temperatures. Keep them
warm when in cold climates or locations. An external battery case
(PE401) is available as an optional accessory.
5. Store the batteries in a cool and dry place, away from direct sunlight.
6. Remove the batteries from the camera body if you plan on not using
the camera for a long time.
7. Replace the batteries with new ones as soon as they are exhausted.
Liquid leakage from the battery can damage the camera.
8. Read the warnings on the batteries for their handling.
For the purpose of the descriptions and explanations
provided in these instructions, it is assumed that the
camera’s power is on.