NDX 77mm Variable Neutral Density Fader Filter Adjustable from ND2 - ND1000 for Pentax K-r

This 77mm NDX variable neutral density fader for the Pentax K-r gives you precise, on-the-fly control over light transmission. Turn the outer ring to select any density between ND2 - ND1000 without swapping filters. Constructed with multicoated glass to help maintain contrast and reduce reflections, it lets you adapt quickly to changing lighting. By dialing in the exact amount of attenuation scene to scene, you save time and avoid adding or removing separate filters.