Sony XC-ST51 Panduan Teknis - Halaman 17

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Halaman Cetak
Sony XC-ST51 Panduan Teknis
Setting the shutter speed using DIP switches
HD/VD input
• Continuous VD input
1
100 µ sec to 250 msec
1
Trigger*
Exposure time (Te)*
External HD*
1
External VD*
1
(Continuous
VD)
T: T=under 10 msec*
Video out
WEN
*1 This is an external input signal. The period of a
continuous VD signal is prescribed as one field.
Make sure to input both HD and VD signals.
*2 The exposure time (Te) is determined by the
setting of DIP switches.
For details, see page 12.
*3 Normal operation is resumed when the trigger
pulse width is 1/3 sec or more. The trigger falling
edge restores external trigger shutter operation. At
this time, the 50 msec after the falling edge of the
trigger pulse is an external trigger input inhibition
area. There is no guarantee of operation for any
trigger input in this period.
XC-ST51/ST51CE
XC-ST50/ST50CE
XC-ST30/ST30CE
External trigger shutter operation
2
2
Exposure time (Te)*
4
T: T=10 msec or more*
1
2
250 H (EIA)
250 H (EIA)
293 H (CCIR)
293 H (CCIR)
Normal
operation*
3
3
Trigger pulse width*
2
4
*4 An image is output when an external VD signal
falls 10 msec or more after a trigger pulse rises (2
and 3 in the figure). If the period from the trigger
rising edge to the external VD falling edge (T in
the figure) is under 10 msec, it is not defined
whether the image is output for the external VD
falling edge or the image is output for the next
external VD falling edge. (1 in the figure shows
that the image is output for the next external VD).
In this case, see WEN since the image and WEN
make up a pair.
Note
An image is not output correctly when the next trigger
is input before the image for the previous trigger has
been output.
Mode Settings
Mode transition state
External input
External trigger
inhibition area
shutter operation
(50 msec)
3
Exposure time
(Te)*
2
T: T=10 msec or
4
more*
3
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