Formatt Hitech 85mm ND Grad ( Reverse Grad ) Filter 1-3 Stops
These Formatt Hitech 85mm Reverse Grad 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 color contrast. ND Grads are clear in the bottom half of the filter with a gradual transition to the ND effect in the top half.
Reverse ND grads are specialty filters designed for shooting sunrise and sunset where the highest luminance is near the horizon line. The reverse grad features a hard transition in the center of the filter (similar to the hard edge grad) but reduce in density toward the top of the filter. Formatt-Hitech filters are made from the highest quality 1.5mm optical resin.
Formatt Hitech 100 x125mm Blender Grad. Blenders feature an effect transition that occurs over the entire length of the filter. Starting at the top and graduating all the way to the bottom. This allows for a graduated effect across your image without any specific horizon line.