77mm NDX Variable Neutral Density Fader Filter Adjustable from ND2 - ND1000 for Olympus Evolt E-420

A variable NDX fader that offers continuous density control from ND2 - ND1000 so you can adapt to varied lighting without switching filters. Built with multicoated glass, it preserves image quality while letting you reduce exposure as needed. Quickly change the density by turning the filter’s outer ring to any setting, saving time compared with adding or removing fixed filters. The variable neutral density design allows precise, scene-to-scene adjustment of light transmission for flexible shooting.