Mamiya RB67 - Flash Photography; Connecting Flash and M-X Selection; Synchronization Table and Aperture Setting

• Flash Photography
Flash Synchronization Table
Contact Bulb
1
-'-
2
M
M
clas s
0 0
Ele c troni c flash
0 0
X F class
0
0
M class
0 0
Combinations with the 0 mark synchronize.
Combinations with the x mark do not synchronize
Shutter speed
-'-
_L
-'- -"-- -'-
--.L --.L
4iö
4 8
15
30 60
125 250
0
0
0
0
0
0
0 0
0 0 0 0 0
0 0 0
0
0
0 0
0
X X X
0 0
0
0
X X X X
Connect the cord of the flash unit to
the synchroflash terminal (25) .
M·X selection
The M-X selecting lever is internally
locked to prevent unintentional switching of
the mode.
When switehing the synehronization mode,
push the
lever against the lens barrel. While
pressing, turn it right or left until it reaehes
the end. The
letter X or M, whieh indieates
the eontaet type, should
appear in the
window.
When employing eleetronie flash, set
the M-X seleetor (24) to X to synchronize
flash at any shutter speed. When M-
elass flash bulbs are used, set . the M-X
selector to M to synchronize at any
shutter speed. When F-class flash bulbs
are used, set the selector to X and pho-
tograph at 1/ 60 sec. or a slower shutter
speed.
The aperture setting for flash photo-
graphy is determined by dividing the
guide number of the bulb or the elec-
tronic flash unit by the distance.
Example
(Guide number) 40
(Distance to subject) 5
= (Aperture setting) 8
NOTE:
When an intensive current flows di-
rectly to the shutter due to an abnormal
method of using electronic flash, the
synchronizing mechanism may be dam-
aged.
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