version 1.5 rev 4 Dec 2019
40
Sona &
Marana
4.7.9 R
olling
s
HUtteR
e
xteRnal
s
taRt
t
RiggeRing
In this mode the camera will wait for a single external trigger event. Once this external trigger event is detected, the
camera will progress as if the camera was in internal trigger mode (see Section 4.7.4 and 4.7.5). The ARM signal
indicates to the user when the camera is ready to detect an External Start Trigger. The following figure shows the
External Start used in Non-overlap Mode, Long Exposure. The delay from the External Trigger to start of exposure is
between 0 and 1 Row.
Figure 15: External Start Triggering “long” (non-overlap)
4.7.10
R
olling
s
HUtteR
t
RiggeRing
c
onstRaints
The table below shows a summary of constraints when operating in Rolling Shutter mode:
Rolling Shutter Triggering Modes
Exposure Range
Max Trigger Jitter
Min Trigger Pulse
Width
Fast Exposure
Switching Supported
Internal (Non-Overlap)
User settable exposure time.
User settable Cycle Time.
1 Row to 30 s
-
-
P
Internal (Overlap On)
User settable exposure time.
1 Row to 30 s
-
-
P
External (Non Overlap)
Exposure time user settable.
Cycle Time controlled via exter-
nal trigger pulse
3 Rows to 30 s
1 row
6.6 ns
P
Software (Non Overlap)
Exposure time user settable.
Cycle Time controlled via soft-
ware trigger function
3 Rows to 30 s
1 row
6.6 ns
P
External Exposure (Non
Overlap)
Exposure Time controlled by
width of external trigger pulse.
Cycle Time controlled via period
of external trigger pulse.
3 Rows to 30 s
1 row
2 Rows
O
External Exposure
(Overlap On)
Exposure time controlled by
period of external trigger pulse
(1 Frame + 2 Row) to
30 s
1 row
6.6 ns
O
External Start (Non
Overlap)
User settable exposure time.
User settable Cycle Time.
1 Row to 30 s
1 row
6.6 ns
P
