Analog Fine Gain; Lut (Lookup Table) / Gamma Function - IAI WA-1000D-CL User Manual

■ Analog fine gain

Analog fine gain (AFG) is gain that is performed after the video signal passes through the CDS circuit
and prior to ADC (analog digital conversion).
This gain can be configured simultaneously for both ch1 and ch2 or individually for ch1 and ch2.
Settings are configured as follows for each mode.
• Master Mode
Master: Allows simultaneous configuration of ch1 and ch2 settings.
2ch: Allows separate configuration from Master. The sum gain of Master and 2ch is applied to
the ch2 video. This allows you to adjust the level differences between channels and perform fine
adjustments on ch2.
• Individual Mode
Allows individual configuration of ch1 and ch2 settings.
Master Mode
Individual Mode
The following diagram indicates the gain ranges of each mode.
Gain
Specified gain value
Master
+14 dB
800
+11 dB
+8 dB
100
0 dB
-3 dB
1 step = x0.01
The following three gain values for ch1 and ch2 are added together for the total gain value.
Total Gain = SensorConversionGain (dB) + AnalogBaseGain (dB) + AnalogFineGain (dB)

LUT (Lookup Table) / Gamma Function

The LUT function is used to generate a non-linear mapping between signal values captured on the
sensor and those that are output from the camera.
The gamma function corrects the output signals from the camera beforehand (reverse correction),
taking into consideration the light-emitting properties of the monitor display.
The γ0.45, LUT, and OFF settings can be selected on this camera. When OFF is selected, γ1 (linear)
sensitivity is applied.
The factory default setting is OFF.
Setting range
Master 0 to +11 dB (0 to 308)
2ch -3 to +3 dB (-84 to +84)
1ch 0 to +11 dB (0 to 308)
2ch 0 to +11 dB (0 to 308)
Master Mode
2ch
Master
̶ 31 ̶
AFG Total = Master
AFG Total = Master + 2ch
AFG Total = 1ch
AFG Total = 2ch
Individual Mode
1ch 2ch
Specified gain value
Master 2ch
+84
-84
1 step = x0.0359
WA-1000D-CL
Total gain
0 (x1)