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Sony XC-ES50/50CE User Manual Page 25

Ccd b/w camera module.
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TIMING CHART OF EXTERNAL TRIGGER SHUTTER - MODE 1 (NON-RESET MODE)
For setting the shutter speed using TRG width
HD/VD input
External trigger shutter operation
1
1
*
Trigger
2
*
Exposure time
1
*
External HD
1
*
External VD
(Single VD)
4
*
T : T = 10 s to 100 ms
Video out
WEN
Continuous HD input and single VD input
1: This is a signal input from the outside. Be sure to input both HD and VD signals in this case. Make the
*
phase of the VD signal coincide with the falling edge of the HD signal during input operation.
2: Exposure time Te
*
(The trigger width should be between 2 s and 1/4 s)
3: The normal operation state is engaged when the trigger 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 trigger input inhibition area.
During the trigger inhibit period, an input trigger may be missed.
4: Be sure to input an external VD signal between 10 s and 75 ms from the falling edge of a trigger pulse (as
*
shown by 1 and 2 in the figure). For the input (except described above), the operation cannot be ensured.
If the external VD signal is not input under the prescribed conditions, the normal operation is engaged
several V after a change in input operation under the prescribed conditions.
5: When the external trigger shutter mode changes into the normal operation mode, one WEN signal is
*
output.
Note
: An image is superimposed when the next exposure ends before the previous image is output.
Te
1
250H
(XC-ES50/ES30,
(XC-ES50/ES30,
XC-EI50/EI30)
XC-EI50/EI30)
293H
(XC-ES50CE/ES30CE,
(XC-ES50CE/ES30CE,
XC-EI50CE/EI30CE)
XC-EI50CE/EI30CE)
Te = Trigger width + 97 s (XC-ES50/ES30, XC-EI50/EI30),
Te = Trigger width + 120 s (XC-ES50CE/ES30CE, XC-EI50CE/EI30CE)
3
*
Normal operation
3
*
Trigger
5
*
250H
293H
XC-E series
Mode transition state
External input
External trigger
inhibition area
shutter operation
(50 ms)
2
2
*
Exposure
time
Te
min 10 s
2
250H
(XC-ES50/ES30,
XC-EI50/EI30)
293H
(XC-ES50CE/ES30CE,
XC-EI50CE/EI30CE)
23

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