Instruction manual

Guppy PRO Technical ManualV4.1.0
131
Controlling image capture
Exposure time (shutter) and offset
The exposure (shutter) time for continuous mode and Trigger_Mode_0 is based
on the following formula:
Shutter register value x time base + offset
The register value is the value set in the corresponding IIDC 1.31 register
(SHUTTER [81Ch]). This number is in the range between 1 and 4095.
The shutter register value is multiplied by the time base register value (see table
132). The default value here is set to 20 μs.
Exposure time of Guppy PRO F-503 (CMOS)
The exposure time of Guppy PRO F-503 can be set in row time increments.
The formula for the row time is:
The minimum row time and the row time by maximum resolution are:
The shutter time of Guppy PRO F-503 can be extended via the advanced register:
EXTENDED_SHUTTER
For more information see chapter Extended shutter on page 216 and table 133.
Formula 7: Row time for Guppy PRO F-503 (CMOS)
Formula 8: Min. row time and row time at max. resolution for Guppy PRO F-503 (CMOS)
t
row
10.42 ns x width + 9.375 μs=
t
row min
10.042 μs=
t
row max res
36.375 μs=