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Taking pictures with the joker² light barrier system
Copyright eltima electronic 2022
Taking pictures with the jok
e
r
²
light barrier system
Setup and alignment of the light barrier
In nature photography, light barriers are usually set up in places where it is
known exactly where and in which direction the animals are moving. Exam-
ples could be feeding places, nests, caves, trails, etc. In experimental photog-
raphy, the light beam is placed in the trajectory of the object to be detected.
This is usually also known.
Setup
The light barrier and reflector are usually mounted on tripods or clamps. The
more stable the setup is, the less likely unwanted releases will occur.
Install the reflector at a location where it will not be visible in the camera
frame and align it so that it points approximately towards the intended loca-
tion of the light barrier. An exact alignment is only required if the highest
range is to be achieved.
Then install one of the light barriers pointed approximately towards the re-
flector and connect it to one of the light barrier slots 1 - 3. Connect the cam-
era to one of the outputs a to d.
The light barriers can also be plugged in and out while the system is
turned on.
Alignment of the light barrier
Turn on your device, and switch
with the
-button to the align-
ment level.
Then point the beam intention-
ally above the reflector and
move the light beam towards the
reflector in a meandering move-
ment, see Figure 22. The dis-
tance a between the horizontal
travels should be smaller than
the diameter d of the reflector,
see Figure 22, otherwise the
beam could “drive around” the
reflector, see Figure 23.
While doing this, observe the de-
flection of the reflection bar on
the display. The larger the deflec-
tion of the beam, the better the
reflection. If the bar reaches a
maximum, the light barrier is
aligned.
Figure 22: Finding the reflector
Figure 23: Driving the beam “around” the re-
flector