GRASS VALLEY Ignite SDC Series Instruction Manual page 51

Ignite SDC/HDC Robotic Camera Instruction Manual
Table 9. Iris, Shutter, Gain Settings
Selection
Step/Synchro
Gain
AGC Max Gain
Description
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.
Shutter Synchro
Speed Scan
OFF -
1/100 100.3 Hz
1/250 250.0 Hz
1/500 492.2 Hz
1/1000 984.4 Hz
1/2000 1.969 kHz
1/4000 3.938 kHz
1/10000 7.875 kHz
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.
(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.
Menu Selections
Required
Luminance Ratio
1
2
4
8
16
32
64
160
51