A CPL (Circular Polarizing Lens) filter is a lens you can put over your dash cam to reduce glare and improve video quality. Vehicles with dashboards that have shiny or light coloured plastic tend to suffer from the most reflections that can be distracting and make details like license plates harder to pick up. Some dash cams that have CPL filter options include the Blackvue DR650S-2CH, VicoVation OPIA2, VIOFO A119/A119S, and Street Guardian SG9665GC V3.
- Make sure there is no dust on the camera's lens or on both sides of the CPL filter. You can remove dust using a dedicated air blower or even something as simple as scotch tape.
- Adjust the CPL filter by rotating it. We recommend parking in a sunny area and looking at the screen or WiFi app when you adjust it. Refer to the video below for a demonstration of how we adjust the filter
- At night you may find the CPL filter makes the video too dark, you may want to adjust the exposure in the settings or remove the filter altogether at night