Grass Valley Ignite SDC - Manual (Page 70)

70 Ignite SDC/HDC Robotic Camera Instruction Manual
Appendix B — SD (PAL) Camera Block
Step/Synchro
This setting is possible only when Step or Synchro Scan is selected in
Shutter Mode setting.
When “Step” has been selected as the Shutter Mode setting:
OFF: Electronic shutter is turned off.
1/100, 1/250, 1/500, 1/1000, 1/2000, 1/4000, 1/10000: Electronic shutter
operates at one of these speeds as selected.
When “Synchro Scan” has been selected as the Shutter Mode setting:
60.34 Hz to 15.75 kHz: Bar noise can be reduced by synchro-scan adjust-
ment in shooting workstation scenes, for example.
*For luminance setting at each shutter speed and synchro-scan shutter
speed, refer to the table below.
Gain
Auto: The light quantity is adjusted automatically.
0 dB: 0dB should be selected in normal cases.
1 dB to 30 dB: Use this range if sufficient video output cannot be obtained
even when the lens iris is opened in shooting dark scenes.
N/Eye L (Night Eye L): Use this mode if sufficient video output cannot
obtained even if 30 dB gain up should be selected.
N/Eye H (Night Eye H): Use this setting if it is not possible to achieve a sat-
isfactory video output even at the Night Eye L setting.
AGC Max Gain
(6dB, 12dB, 18dB, 24dB, N/Eye L, N/Eye H) This is used to set the maxi-
mum gain up when “Auto” has been selected as the gain setting.
Table 24. Iris, Shutter, Gain Settings
Selection Description
Shutter
Speed
Synchro
Scan
Required
Luminance Ratio
OFF - 1
1/120 120.2 Hz 2
1/250 250.0 Hz 4
1/500 492.2 Hz 8
1/1000 984.4 Hz 16
1/2000 1.969 kHz 32
1/4000 3.938 kHz 64
1/10000 7.875 kHz 160