Pike Technical Manual
V5.2.0
210
Controlling image capture
Example: 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.
The real mini-
mum 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
The longest exposure time, 3FFFFFFh, corresponds to 67.11 sec.
The lowest possible value of
ExpTime
specific minimum exposure time
Pike F-505
1 μs
1 μs + 26 μs =
27
μs
Pike F-1100
1 μs
1 μs + 128 μs =
129
μs
Pike F-1600
1 μs
1 μs + 635 μs =
636
μs
Camera
Register value
Time base (default)
Pike F-032
100
20 μs
Table 74: Register value and time base for
Pike F-032
Register
Name
Field
Bit
Description
0xF100020C
EXTD_SHUTTER
Presence_Inq
[0]
Indicates presence of this feature (read
only)
---
[1.. 5]
ExpTime
[6..31]
Exposure time in μs
Table 75: Advanced register:
Extended
shutter
Camera model
Minimum exposure time
Effective min. exp. time
= Min. exp. time + offset
Table 73: Camera-specific minimum exposure time