Instruction manual
Guppy PRO Technical ManualV4.1.0
122
Controlling image capture
The Guppy PRO F-503 has two shutter modes:
• electronic rolling shutter (ERS) and
• global reset release shutter (GRR)
Guppy PRO F-503, Trigger_Mode_0, electronic rolling 
shutter
• IntEna is high, when all pixels are integrated simultaneously.
• IntEna starts with start of exposure of last row.
• IntEna ends with end of exposure of first row.
 No IntEna if exposure of first row ends before the last row starts.
Long exposure time:
To get an IntEna signal the following condition must be true:
T
exp eff.
 = T
exp
 - T
frame
 > 0 
Note
With this two shutter modes only Trigger_Mode_0 is possible. 
Details are explained in the following diagrams.
 Figure 64: Trigger_Mode_0: Guppy PRO F-503 electronic rolling shutter (long exposure time)
IntEna
T
row
FVal
T
exp
T
frame
Overlapping: 
good for flash
T
exp
 – T
frame
 > 0










