User Guide

This document does not contain any export-controlled information.
Operation
32
427-0300-00-12 - Revision 110 - May 2021
o Manual—Allows you to specify a fixed shutter speed, iris size, and gain.
Generally used where light levels are fixed and the Full Auto mode does
not provide the optimal exposure. This mode is recommended for
scenes where there is a fixed lighting contrast and a constant, precise
exposure is required; for example, some indoor scenes.
§ Shutter Speed—Select a fixed shutter speed according to the
environmental luminance. A slower shutter speed increases the
amount of light entering the sensor and results in a brighter, more-
detailed image. The Video Format determines the shutter speeds
available, listed in the following table from slowest to fastest:
NTSC
PAL
1/30
1/180
1/1000
1/25
1/150
1/1250
1/60
1/250
1/2000
1/50
1/215
1/2500
1/90
1/350
1/3000
1/75
1/300
1/3500
1/100
1/500
1/10000
1/100
1/425
1/10000
1/120
1/725
1/32000
1/120
1/600
1/32000
§ Iris Size—The iris works in tandem with the shutter to determine how much light enters the sensor.
Defining a larger iris increases the amount of light entering the sensor and results in a brighter,
more-detailed image. With 0 (zero) being the smallest iris size, select a value between 0-9 or Full
Open.
§ Gain—A higher value increases the sensitivity of the image sensor, which brightens the image and
adds details, but also increases the noise level. Define a value between 0-160.
· Video Format—When mounted indoors, the visible camera shutter speed can be synchronized to the
50 Hz or 60 Hz power used for lighting the scene. If lighting is connected to 50 Hz power, the PAL
setting might provide better video and NTSC might provide better video under 60 Hz lighting.
Where relevant, changing the settings on the Visible page immediately affects the live visible video
images and streams. To save any changes, click Save. To discard changes or return to the factory
defaults, click Reset.