Reverse ND grads Look directly into the sun

A specialist form of ND grad, a ‘reverse’ ND is clear at the bottom but darkest in the central portion, with the filter fading once again towards the top. It’s designed for shooting directly into the sun when it’s close to the horizon at dawn or dusk, where this is by far the brightest area of the image. And like a regular ND grad, these filters are actually rectangular in shape rather than square. This is so they can slide up and down within the filter holder for precise positioning of the dark portion of the filter so that it sits directly over the horizon line, where the scene is at its brightest, giving a great deal of leeway for where it sits within the holder and offering plenty of flexibility in your composition.