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T-mode on the Mamiya 645AFD
T-mode is not supported for digital backs on the Mamiya 645 AFD or
AFD645II. This is usually not a problem as the Mamiya can use exposure
times as long as 16 minutes.
Recommended max exposure time on P 65+ is 1 minute.
On Phase One 645AF and Mamiya AFDIII you can set bulb function to
work as the T Mode, using the Custom Functions,please consult the
relevant userguide on this.
Mirror Up
When using mirror up the mode selector should be placed in M (Manual
mode) and the focus type selector should also be in the M position.
It is not possible for the camera to measure light or focus when the
mirror is up. Please consult the Mamiya 645 Instruction manual to learn
how to use Mirror Up.
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