Turning The Power On - Pentax 645NII Operating Manual

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1
1. Set the main switch to [ON]
• When the camera is not in use, make sure that the
main switch is OFF to prevent battery drain if the
shutter release button is accidentally pressed.

Turning the Power ON

2
2. With the main switch set to U, an audible
PCV signal is heard under one of the follow-
ing conditions.
• When the subject comes into focus.
• When the film is left only one frame.
• With the mirror lock-up function set.