Dalsa Stop Action 4M30 Bedienungsanleitung PDF herunterladen (Seite 51)

Falcon 4M Camera Manual

DALSA 03-032-20044-01

3.8 Offset and Gain Adjustments

Setting Analog Offset

Purpose: Sets the analog offset.

Syntax:

sao t i

Syntax Elements:

Tap selection. Allowable value is 0 for all taps.

Analog offset value. Extreme range is 0 - 511 but dynamic

range is dependent of the camera’s current exposure mode

and gain settings. A value of 100 does not equal an offset of

100DN.

Notes:

• When flat field correction is enabled the expectation is that in

the dark the signal level is 0DN. Some users might required a

non-zero dark output. This can be achieved by increasing

analog offset.

• Take care not to increase SAO too much with FFC enabled,

otherwise a PRNU-induced FPN pattern will result. Keep the

dark offset below 5 DN (10 bit).

• The offset increases linearly with higher values.

• Entering a large value offset will cause the camera to digitally

saturate the output image.

• The resulting analog offset value depends on other camera

parameters such as temperature, frame rate, and exposure

mode.

• The upper input limit of the offset remains the same regardless

of the exposure mode

Example:

sao 0 20

Factory Calibrated Analog Gains

The camera has a factory calibrated analog gain setting. Adjustment of analog gain is not

available to the user, however, digital gain is available as set system gain

ssg.

1 2 ... 46 47 48 49 50 51 52 53 54 55 56 ... 85 86

Keine Kommentare

Dalsa Stop Action 4M30 Bedienungsanleitung Seite 51