77mm NDX Variable Neutral Density Fader (ND2 - ND1000) for Sony Alpha DSLR-A850

Wide-ranging exposure control adjustable from ND2 - ND1000, the 77mm NDX variable neutral density fader offers flexible light reduction for the Sony Alpha DSLR-A850. Its multicoated glass construction gives you control in any lighting environment. Rather than swapping filters, simply rotate the exterior ring to select the desired neutral density setting, saving time on set. The variable ND design lets you dial in differing amounts of density from scene to scene.