Previously, Andrew has shown us how to use a 10-stop ND but ... these filters and you don't need to use as much maths). We hope you find the tutorial useful and for more information on Hoya ...

Looking for the best ND filters ... square ND64 6-stop glass filter, at $39/£30, which works a treat with the Elite filter holder. Just as Cokin made square filters famous, Hoya is the first ...

Manufactured in Japan, the new filters will be sold in eight densities, covering a range from a one-stop to ten-stop light reduction. The Hoya Solas filters will be sold in sizes of from 49 to 82 ...