External Trigger Shutter; Setting Of The External Trigger Shutter - Sony XC-HR300 Technical Manual

External Trigger Shutter

By inputting an external trigger pulse, the camera is
able to capture fast-moving objects clearly.
Set the Restart reset/External Trigger Shutter mode
switch on the rear panel to Mode 1 or Mode 2.
When you set the trigger pulse width to 1/3 of a second
or more, the output signal changes to the normal
VIDEO signal.
There are two modes for timing in which a video
signal is obtained.
• Mode 1 (Non-reset mode)
In this mode, a video signal synchronized with a VD
signal is output after a trigger pulse is input.
– A video signal is synchronized with the external
VD signal when an external HD/VD signal is input.
– A video signal is synchronized with an internal VD
signal when no external HD/VD signal is input.
• Mode 2 (Reset mode)
In this mode, an internal VD is reset, then an internal
video signal is output after trigger pulse input after a
certain period of time.
For details of each timing chart, see pages 17 to 24.
Setting of the External Trigger
Shutter
There are two ways to set the shutter speed.
Using the DIP switches on the rear panel
Mode 1 (Non-reset mode)
1/120 1/250
1/2000 1/4000
Mode 2 (Reset mode)
1/120 1/250
1/2000 1/4000
1/500 1/1000
1/8000 1/25000
(Unit: second)
1/500 1/1000
1/8000 1/25000
(Unit: second)
Using trigger pulse width
Set all DIP switches (1 to 4 on the rear panel) to 0.
You can obtain an arbitrary shutter speed by setting the
trigger pulse width to the range of 2 µ sec to
250 msec.
Mode 1 (Non-reset mode)
Exposure time = Trigger pulse width + 31 µ sec
Note
If you input a new trigger pulse before the video signal
output for the previous trigger pulse is output
completely, an incorrect video signal will be output.
Mode Setting
Mode 2 (Reset mode)
14