Mamiya 645DF - AUTO MODE MECHANISM; Leaf and Focal Plane Shutter Operating Ranges

Chapter 1 - Basic info
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Chapter 6 - Exposure Modes
auto mode mechanism
When using the leaf shutter lens, the leaf shutter's working range is from 1/800 sec. to 1 sec.
For other speeds (1/4000-1/800 sec., 1-60sec., bulb) use the focal plane shutter.
P
Av
Tv
M
X
CF
C1
C2
C3