C) Cpl Installation (Optional) - TrueCam A5s Bedienungsanleitung

c) CPL installation (optional)

CPL: Circular-polarizing filter can reduce the inner reflection on the car windshield.
Without CPL
Install the CPL by screwing the filter ring on the
camera's lens.
After installing the CPL on the lens, rotate the CPL
adjustment ring to get an ideal polarized effect.
7
With CPL
adjustment circle ring