The Drop-In X4 Dark CPL filter brings together the features of a CPL and ND into a single, versatile filter. Available from 1 to 10-Stops (0.3 - 3.0), the X4 Dark CPL filter has the optical accuracy and colour-neutrality of the X4 ND and polarisation can be controlled precisely by an oversized adjustment wheel.
- 3.1mm SCHOTT B270 German Glass
- 25 Year Warranty
- 16 MRC Layers
- Nano Coating