Instruction manual

Controlling image capture
Guppy PRO Technical Manual V2.0.3
142
Minimum exposure time
Example: Guppy PRO F-031
register value x time base + exposure time offset = exposure time
100 x 20 µs + 27 µs = 2027 µs exposure time
The minimum adjustable exposure time set by register is 4 µs.  The real
minimum exposure time of Guppy PRO F-031 is then:
4 µs + 67 µs = 71 µs
Extended shutter
The exposure time for long-term integration of
• up to 67 seconds for the CCD models
• up to 22 seconds for the Guppy PRO F-503 (CMOS model)
can be extended via the advanced register: EXTENDED_SHUTTER
Guppy PRO F-201 41 µs
Guppy PRO F-503 see Chapter Exposure time
of Guppy PRO F-503 (CMOS)
on page 141
Camera model Minimum exposure time Effective min. exp. time
= Min. exp. time + offset
Guppy PRO F-031 4 µs 4 µs + 67 µs = 71 µs
Guppy PRO F-032 4 µs 4 µs + 23 µs = 27 µs
Guppy PRO F-125 4 µs 4 µs + 31 µs = 35 µs
Guppy PRO F-146 4 µs 4 µs + 27 µs = 31 µs
Guppy PRO F-201 4 µs 4 µs + 41 µs = 45 µs
Guppy PRO F-503 see Chapter Exposure time of Guppy PRO F-503 (CMOS)
on page 141
Table 59: Camera-specific minimum exposure time
Camera Register value Time base (default)
Guppy PRO F-031 100 20 µs
Table 60: Register value and time base for Guppy PRO F-031
Camera model Exposure time offset
Table 58: Camera-specific exposure time offset