Axcess 67 mm Variable Fader Neutral Density NDX Color Compensating Filter  (67 mm)

1.Professional optical lens manufacturer • Made of import optics glass and resin,top level of transmittance • Premium Picked up Product. Shop with Guarantee 2. Dedicated to provide products in high quality & good price • Made of metal sealing ring, much tighter. Laser fonts, much durable • Meet Environmental Standards of RoHS Filter function • Reduces the amount of light reaching the film without affecting the color • Applies slow shutter speed under strong sunlight exposure • Allows wider apertures, effectively decreasing depth of field • Great for shots of dynamic screen, waterfalls, streams, waves, etc Filter function • Imported optical glass, top level of transmittance • Metal sealing ring, better tightness, avoids fall or loose • Environmentally friendly frame made of aircraft grade magnalium Notice: When using the ND filter to the maximum(ND400) or bigger degree density, it will appear "X" spot or a blur in the picture, this is a normal phenomenon.(Suggestion:lower down the density value gradually and reduce the aperture, until the facula disappeared.)