67mm NDX Variable Neutral Density Fader (ND2 - ND1000) for Pentax SMCP-DA 17-70mm f/4 AL (IF) SDM

This 67mm variable NDX fader gives you continuous neutral density control from ND2 up to ND1000, so you can handle a wide range of lighting conditions without swapping glass. The filter uses multicoated glass to reduce reflections and preserve image quality while you adjust exposure. A smooth exterior rotating ring lets you select any density setting quickly and precisely — no need to add or change filters between shots. Perfect for photographers who move between different scenes, it lets you dial in varying amounts of density scene to scene and saves time on set.