The Haida M15 CPL + ND filter is a dedicated drop-in filter for the Haida M15 150mm Filter Holder.
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 attaches to the front of the filter holder and can be rotated independently of any drop-in filters you have in the holder by way of the outer cog wheel on the M15 Filter Holder.
