72Mm Nd400 Neutral Density Filter Hoya uv filter The optical construction is 14

The optical construction is 14 elements in 10 optical groups with 3 high refractive index elements

ribbed manual focus ring which is smooth and well-damped

Excellent image stability

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This combined with the motor's high-precision focus control yields faster

72Mm Nd400 Neutral Density Filter Hoya uv filter The optical construction is 14The Hoya 49mm NDx400 HMC Filter has a 9 stop light reduction equal to a ND optical density of approx. 2. 7. Neutral density filters are designed to reduce the amount of light entering your camera lens and should not have any other effect on the image. Reducing the amount of light allows for the use of wider apertures or slower shutter speeds for creative and dramatic effect in bright lighting conditions. HMC (Hoya Multi Coated) These popular filters