Sony XC-ST50 Manuel technique - Page 26

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Sony XC-ST50 Manuel technique
XC-ST50/50CE
XC-ST30/30CE
TIMING CHART OF EXTERNAL TRIGGER SHUTTER - MODE 2 (RESET MODE)
For setting the shutter speed using DIP switch
External trigger shutter operation
1
1
*
Trigger
100 us to 250 ms
2
*
Exposure time
Video out
1
4
*
T
WEN
250H
(XC-ST50/ST30)
293H
(XC-ST50CE/ST30CE)
1: This is a signal input from external equipment. The trigger interval should be the shutter speed (DIP
*
switch) + 1 field + 2H period or more. A trigger interval shorter than described above cannot be ensured.
If a trigger pulse is not input under the prescribed conditions, please wait several V before re-entering a
trigger pulse.
2: As shown in the table on page 7, exposure time Te is determined by the DIP switch setting.
*
3: Normal operation is engaged when the high period exceeds 1/3 sec. After that, the external trigger shutter
*
operation is engaged when the trigger pulse goes "low". In this case, the area between the falling edge of
a trigger pulse and the subsequent 50 ms period is an external input inhibition area. During the trigger
inhibit period, an input trigger may be missed.
4: After a period set by a DIP switch from the rising edge of the trigger, an image is output.
*
24
Te
Mode transition
External input
inhibition area
3
*
Normal operation
(50 ms)
1/3 s or more
External trigger
shutter operation
3
2
*
Exposure
time
Te
3
4
*
T
250H
(XC-ST50/ST30)
293H
XC-ST50CE/ST30CE)