Controlling image capture
STINGRAY Technical Manual
V4.4.2
200
Example: Stingray F-033
register value x time base = 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
Stingray F-033
is then:
4 µs + 27 µs = 31 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
is camera-specific (see
era-specific minimum exposure time
Stingray F-201
4 µs
4 µs + 44 µs = 48 µs
Stingray F-504
4 µs
4 µs + 38 µs = 42 µs
Camera
Register value
Time base (default)
Stingray F-033
100
20 µs
Table 68: Register value and time base for
Stingray F-033
Register
Name
Field
Bit
Description
0xF100020C
EXTD_SHUTTER
Presence_Inq
[0]
Indicates presence of this feature (read
only)
---
[1.. 5]
Reserved
ExpTime
[6..31]
Exposure time in µs
Table 69: Advanced register:
Extended shutter
Camera model
Minimum exposure time Effective min. exp. time
= Min. exp. time + offset
Table 67: Camera-specific minimum exposure time