
Controlling image capture
PIKE Technical Manual V4.0.0
181
Minimum exposure time
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
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
The longest exposure time, 3FFFFFFh, corresponds to 67.11 sec.
Camera model Minimum exposure time Effective min. exp. time
= Min. exp. time + offset
PIKE F-032 1 µs 1 µs + 17 µs = 18 µs
PIKE F-100 1 µs 1 µs + 42 µs = 43 µs
PIKE F-145 1 µs 1 µs + 38 µs = 39 µs
PIKE F-145-15fps 1 µs 1 µs + 70 µs = 71 µs
PIKE F-210 1 µs 1 µs + 42 µs = 43 µs
PIKE F-421 1 µs 1 µs + 69 µs = 70 µs
PIKE F-505 1 µs 1 µs + 26 µs = 27 µs
Table 72: Camera-specific minimum exposure time
Camera Register value Time base (default)
PIKE F-032 100 20 µs
Table 73: 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 74: Extended shutter configuration
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