Sony XC-ST30CE Manual técnico - Página 12
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XC-ST50/50CE
XC-ST30/30CE
RESTART RESET (R.R)
The information on one screen can be extracted at any time by inputting a restart/reset signal (HD/VD) from
external equipment. To enter this mode, set DIP switches 6, 7, and 8 on the rear panel of the camera as shown in
the table below.
Long exposure
Restart Reset is especially effective for Long Exposure.
A clear image is obtained by extending the exposure time of the CCD when satisfactory sensitivity cannot be
obtained under ordinary operating conditions or when observing the trail of a moving object.
The exposure time is determined by the period (T) between external VD pulses as follows.
• Timing and conditions
Example 1 of Long Exposure
Continuous signal: 15.734 kHz (XC-ST50/ST30), 15.625 kHz (XC-ST50CE/30CE) Allowable frequency value ±1%
EXT HD
EXT VD
VD interval(T): 262.5H or more (XC-ST50/ST30), 312.5H or more (XC-ST50CE/30CE) and 1 second or less (Recommended)
Four or more VD pulses are required.
Exposure time for Odd field
Exposure time for Even field
Video output
Odd and even fields are determined by the phase of the EXT HD/VD signal input from external equipment.
10
Switch
Restart Reset (R.R)
1
0
0
2
0
3
0
4
5
0
1
6
1
7
1
8
T
T
Odd image
Invalid image
1: ON
0: OFF
T
Even image
Valid frame image