IDX System Technology 4 x 5.65" ALPHA-I Solid Neutral Density 1.2 Filter (4-Stop) Jobu Design SF-NX2 When those zippers are both

When those zippers are both in the closed position

there is continuous dimming from 100-25%

such as being able to consistently select to a value

52 mm product from HAMMOND with the model number 1590DFProduct details

IDX System Technology 4 x 5.65" ALPHA-I Solid Neutral Density 1.2 Filter (4-Stop) Jobu Design SF-NX2 When those zippers are both16x Filter Factor, 4 Stop Darkens Entire Image Allows Reduced Shutter Speed Allows Wider Aperture Optical Glass Construction Multi Coated 4mm Thick Padded Pouch The 4 x 5. 65" ALPHA I Solid Neutral Density 1. 2 Filter from IDX System Technology is an ND filter with a 16x filter factor that provides a 4 stop exposure reduction. Its 1. 2 density creates a darkening of the entire image, allowing you to photograph with a wider aperture or slower shutter