HotShot SC User Manual
Rev 1.2.5 –March 2012
© NAC Image Technology Inc
Jimmy Robinson
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6.3.6 Gain
This sets the gain on the camera sensor. A higher gain will increase light sensitivity
BUT
will also introduce noise into the image.
The Gain settings available are :
0dB
3dB
6dB
12dB
The ideal setting is 0dB. This gives the minimum amount of noise.Values of 3, 6 and
12 dB Will compensate for inadequate lighting BUT will suffer from noise.
6.3.7 Digital Shift
(ONLY FOR HotShot SC camera)
Some HSSC camera types will only store 8 bits of image data regardless of the
sensor Bit Depth. For cameras where this is the case, the
bit significance
of
the 8 bits can be specified. Adjusting the Digital Shift is another method of adjusting
the light sensitivity, separate from the GAIN function above.
6.3.8 Auto Exposure Control
NOT available on all camera models
Auto Exposure Control will automatically adjust the exposure time (shutter Speed) to
give a correctly exposed image. This is particularly useful when recording outside
where clouds might affect the light levels in an unknown manner.
To Switch Auto Exposure Mode ON click the Button.
You can select from three PRESET exposure levels (LOW , MEDIUM and HIGH).
Low will give the darkest image and High will give the lightest image. The exposure
level is calculated on the center 80% of the current AOI of the camera.
The Auto Exposure setting will NEVER exceed the user specified Exposure (Shutter)
value.
