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|Amazon UK||5 days ago||194.18||$191.00||You save $3.18|
Neutral density (or ND) filters produce a grey neutral tone and are used in photography to reduce light, enabling more control over exposure and depth of field without affecting colour contrast. NDs are also available in graduated filters, both in hard and soft edge. These filters are clear in the bottom half of the filter with a gradual transition to the ND effect in the top half. They are primarily used for light reduction in skylines of landscape shots. The reverse grad is a vital tool if you are looking to take sunrise or sunset shots. This is because the ND part of the grad is upside down, with the darker part at the middle of three filter and the lighter part at the top. This ensures the maximum light reduction when the sun is at or near the horizon. ND Reverse Grads are made in different densities according to the level of light reduction from 1 to 3 Stops of light. This 100mm filter is usable with Hitech 100mm holder systems or any 100mm (4-Inch) holder. The 0.9 filter reduces light by 3 Stops. The filter is 100mm Wide but 125mm (5-Inch) long so that it can be moved up and down in the holder to line up the graduation line easily with the horizon.