D) Cpl Installation (Optional) - TrueCam A6 Benutzerhandbuch

d) CPL Installation (optional)

CPL: Circular-Polarizing Filters, could reduce the reflection of inner car on the car window.
Without CPL
Install CPL onto device thru screw on
device camera.
And after install CPL onto device and install device
onto car window, rotate the adjustment circle ring on
CPL to get the good Polarized effect to car window
reflection.
8
With CPL
Adjustment circle ring