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Image Engineering
Trigger - activates the camera release. The iQ-Trigger is available as a separate product and is
not included in the scope of delivery of LED-Panel.
Example
LED-Panel settings:
Operating mode TRIGGER EXT
Exposure time (1/x s) 1/10 s
LED No. 2 is lit up (Figure 2):
Shutter lag is 0.2 seconds (2 * 1/10 s)
4.2 Shutter lag with autofocus time
The LED-Panel is used in TRIGGER EXT operating mode, and a microswitch is connected.
Two pictures are taken, and the shutter lag is calculated.
•
It is described in Shutter lag without autofocus time. The shutter lag without autofocus
time is calculated.
•
The camera focus is set to infinity, and afterward, a picture of the LED-Panel is taken
with the microswitch
’s help. After the time for the autofocus and shutter lag has passed,
the camera takes a picture of the running LED-Panel. The time passed since the
microswitch (and release button) was pressed and autofocus was completed can be
read with the aid of the lit LEDs in this picture.
The autofocus time can be calculated as the difference between shutter lag with autofocus time
(Figure 4) and shutter lag without autofocus time (Figure 3).
Autofocus time = (shutter lag with autofocus time)
– (shutter lag without autofocus time)
