Instruction manual
Guppy PRO Technical ManualV4.1.0
215
Configuration of the camera
The time base IDs 0-9 are in bit [28] to [31]. See Table 132 : Time base ID on page
215. Refer to the following table for code.
Default time base is 20 μs: This means that the integration time can be changed
in 20 μs increments with the shutter control.
The ExpOffset field specifies the camera specific exposure time offset in micro-
seconds (μs). This time (which should be equivalent to table 65:) has to be
added to the exposure time (set by any shutter register) to compute the real
exposure time.
The ExpOffset field might be zero for some cameras: this has to be assumed as
an unknown exposure time offset (according to former software versions).
Register Name Field Bit Description
0xF1000208 TIMEBASE Presence_Inq [0] Indicates presence of this fea-
ture (read only)
--- [1..7] Reserved
ExpOffset [8..19] Exposure offset in μs
--- [20..27] Reserved
Timebase_ID [28..31] See Table 132 : Time base ID
on page 215.
Table 131: Advanced register: Time base
Note
Time base can only be changed when the camera is in idle state
and becomes active only after setting the shutter value.
ID Time base in μs
01
12
25
310
4 20 Default value
550
6100
7200
8500
91000
Table 132: Time base ID