This two in one filter features both a Circular Polarizer to help remove reflections and glare from non-metallic surfaces, and a solid Neutral Density filter to help capture longer exposures. The multicoated CPL + ND filter features anti-reflection and anti-color cast properties, and conveniently fits in the dedicated drop-in slot of the M10 and M10-II filter holders with an independent rotation wheel that allows you to adjust the polarization of the filter.
The M10-II drop-in filter line is made from aerospace aluminum and feature an easy to use pinch-and-release grip design. M10-II drop-in filters are compatible with both the M10 and M10-II filter holders.