Singh-Ray

77mm Vari-N-Duo Polarizing Variable Neutral Density Filter (Standard Mount)

Variable Neutral Density Cum Polarizing Filter

The Singh-Ray Vari-N-Duo Polarizing Variable Neutral Density Filter is designed to provide benefits of two different types of filters in one, thus reducing the the potential of vignetting that tend to occur when filters are stacked. The filter consists of two rings: one for adjusting neutral density from 2 and 2/3 to 8 f/stops that simultaneously adjust exposure times; the other rotating ring is the LB Warming Polarizer, which helps to reduce glare from reflective surfaces, including sky, water, and wet rocks.

This filter features a front ring filter thread of Standard Mount to allow addition of either a Mor-Slo 5-stop Solid ND Filter or a Cokin holder for ND Grad Filters.