Instruction manual

Guppy Technical ManualV7.4.0
99
Description of the data path
The following ranges can be used when manually setting the gain for the analog
video signal:
Type Range Range in dB Increment length
CCD cameras 0 ... 680 0 … 24 dB ~0.035 dB/step
Guppy F-036
(CMOS camera)
16 … 64 0 … 12 dB 0..15: ~0.2 dB/step (1 step = 1 LSB)
16..64: ~0.25 dB/step (1 step = 2 LSB)
Guppy F-503
(CMOS camera)
8 ... 32
33 ... 48
49 ... 60
0 ... 12 dB
12.56 ... 18.06 dB
19.08 ... 26 dB
~0.5 dB/step
~0.56 dB/step
~1 dB/step
Table 36: Manual gain range of the various Guppy types (CCD and CMOS)
Note

• Setting the gain does not change the offset (black value)
for CCD models.
• A higher gain also produces greater image noise. This
reduces image quality. For this reason, try first to
increase the brightness, using the aperture of the cam-
era optics and/or longer shutter settings.