Formatt Hitech Reverse Graduated Neutral Density Filter 0.3

• 100x125mm Size filter. Fits Hitech 100mm, LEE and Cokin Z-Pro systems. A single filter is usable on multiple lenses
• 100mm is a popular size for smaller consumer DSLR lenses and mirrorless cameras.
• Made from the highest quality CR-39 optical resin available, with an index of refraction nearly identical to the finest optical glass.
• High scratch resistance, low material fatigue, and chamfered corners to resist breakage so the filter will provide years of service.

Made in the UK using the world's most advanced, computer-controlled filter manufacturing technologies.
Neutral density 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 the filter and the lighter part at the top. This ensures the maximum light reduction when the sun is at or near the horizon. ND ReverseGrads 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 holder. The 0.3 filter reduces light by 1 stop. The filter is 100mm wide but 125mm long so that it can be moved up and down in the holder to line up the graduation line easily with the horizon. A 100mm x 150mm version is also available for added flexibility. The filter is also available in 85mm, 150mm and 165mm sizes. Hitech filters are made from the highest quality 1.5mm optical resin.