K&F Concept 40mm Ultra-Slim CPL Circular Polarizer Dashcam Filter for E1, E2, E3, E1 Lite, S1 Pro, N4 Pro N5 Dashcam, Reduce Glare and Reflection, Enhance Contrast
 
Product Features
  

         
Compatible NoteThis 40mm CPL filter is used for N5, N4 Pro,S1 Pro, E1, E1 Lite dash cam, E2, E3 front lens. Note: It doesn't work for other dash cams.
         
CPL FunctionIt can effectively reduce reflections, enhance contrast and boost saturation while retaining neutral color rendition in all your shots. Remove 99.9% polarizing light, wiht 45% transmittance.
         
Aircraft-Grade AluminumAluminum alloy CNC non-slip design, easy to install and remove the filter. Super slim 5.5mm rim profile greatly avoids vignettes on wide-angle lenses.
         
Nanometer CoatingsWith multi-layer nanometer coating, ensure the image and video quality, durable enough.