Minimum Exposure Time; Extended Shutter - AVT Pike Technical Manual

Controlling image capture
Register Name
0xF100020C EXTD_SHUTTER Presence_Inq

Minimum exposure time

Camera model Minimum exposure time
Pike F-032
Pike F-100
Pike F-145
Pike F-145-15fps
Pike F-210
Pike F-421
Pike F-505
Table 60: Camera-specific minimum exposure time
Example: Pike F-032
Camera
Pike F-032
Table 61: Register value and time base for Pike F-032
register value x time base = exposure time
100 x 20 µs + 17 µs = 2017 µs exposure time
The minimum adjustable exposure time set by register is 1 µs.
minimum exposure time of Pike F-032 is then:
1 µs + 17 µs = 18 µs

Extended shutter

The exposure time for long-term integration of up to 67 seconds can be
extended via the advanced register: EXTENDED_SHUTTER
Field
---
ExpTime
Table 62: Advanced register: Extended shutter
The longest exposure time, 3FFFFFFh, corresponds to 67.11 sec.
1 µs
1 µs
1 µs
1 µs
1 µs
1 µs
1 µs
Register value
100
Bit Description
[0] Indicates presence of this feature (read
only)
[1.. 5]
[6..31] Exposure time in µs
Effective min. exp. time
= Min. exp. time + offset
1 µs + 17 µs = 18 µs
1 µs + 42 µs = 43 µs
1 µs + 38 µs = 39 µs
1 µs + 70 µs = 71 µs
1 µs + 42 µs = 43 µs
1 µs + 69 µs = 70 µs
1 µs + 26 µs = 27 µs
Time base (default)
20 µs
The real
PIKE Technical Manual V4.1.0
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