Sony XCEI50 User Manual (XCES_Series_User_Guide) - Page 26

Timing Chart Of External Trigger Shutter - Mode 1, Non-reset Mode

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XC-E series TIMING CHART OF EXTERNAL TRIGGER SHUTTER - MODE 1 (NON-RESET MODE) For setting the shutter speed using TRG width No HD/VD input (Internal synchronization) *1 Trigger External trigger shutter operation 1 2 *2 Exposure time Te *2 Exposure time Te *3 Normal operation *3 Trigger *4 Interrnal VD *5 T : T = 10 µs or more Video out WEN 1 2 *6 250H (XC-ES50/ES30, XC-EI50/EI30) 293H (XC-ES50CE/ES30CE, XC-EI50CE/EI30CE) Mode transition state External input inhibition area External trigger (50 ms) shutter operation 3 *2 Exposure time Te *5 T : T = Under 10 µs 3 *1: This is a signal input from the outside. *2: Exposure time Te Te = Trigger width + 97 µs (XC-ES50/ES30, XC-EI50/EI30), Te = Trigger width + 120 µs (XC-ES50CE/ES30CE, XC-EI50CE/EI30CE) *3: The normal operation state 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: An internal VD signal is output by setting the INT/EXT switch on the rear panel to INT. *5: During external trigger shutter operation, an image is output when an internal VD signal falls after a trigger pulse falls (as shown by 1 and 2 in the figure). However, if the time (T in the figure) between the falling edges of a trigger pulse and internal VD signal is under 10 µs, an image is output when the internal VD signal or the next internal VD signal falls (as shown by 3 in the figure). (In this case, an image is output when the next internal VD signal falls.) An image and WEN signal are always output together. For more details, refer to the WEN signal. (The falling edge of an internal VD signal is the same in phase as the beginning of an equalizing pulse in a SYNC V area.) *6: 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. 24

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24
XC-E series
TIMING CHART OF EXTERNAL TRIGGER SHUTTER - MODE 1
(NON-RESET MODE)
For setting the shutter speed using TRG width
No HD/VD input (Internal synchronization)
*
1:
This is a signal input from the outside.
*
2:
Exposure time Te
Te = Trigger width + 97
μ
s (XC-ES50/ES30, XC-EI50/EI30),
Te = Trigger width + 120
μ
s (XC-ES50CE/ES30CE, XC-EI50CE/EI30CE)
*
3:
The normal operation state 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:
An internal VD signal is output by setting the INT/EXT switch on the rear panel to INT.
*
5:
During external trigger shutter operation, an image is output when an internal VD signal falls after a trigger
pulse falls (as shown by
1
and
2
in the figure).
However, if the time (T in the figure) between the falling
edges of a trigger pulse and internal VD signal is under 10
μ
s, an image is output when the internal VD
signal or the next internal VD signal falls (as shown by
3
in the figure). (In this case, an image is output
when the next internal VD
signal falls.)
An image and WEN signal are always output together.
For more
details, refer to the WEN signal. (The falling edge of an internal VD signal is the same in phase as the
beginning of an equalizing pulse in a SYNC V area.)
*
6:
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.
*
4
Interrnal VD
*
5
T : T = 10
μ
s or more
*
6
*
1
Trigger
Video out
WEN
External trigger shutter operation
*
3
Normal operation
*
3
Trigger
Mode transition state
External input
inhibition area
(50 ms)
External trigger
shutter operation
*
2
Exposure time
Te
*
2
Exposure time
Te
*
2
Exposure
time
Te
*
5
T : T = Under 10
μ
s
1
2
3
1
2
3
250H (XC-ES50/ES30, XC-EI50/EI30)
293H (XC-ES50CE/ES30CE, XC-EI50CE/EI30CE)