The Coral soft edge color graduated effects filter is a pale pink color. They are available in 3 densities, 1,2 and 3. They are primarily used for skylines of landscape shots. Graduated filters are available in Soft Edge or Hard Edge varieties. Soft edge grads have a smooth transition from clear to ND. Hard edge grads have a more defined hard lined transition and are usually used for longer focal lengths. Different graduated color filters can be used in combination together or with solid color or neutral density filters to give interesting bespoke effects. This 100mm filter is usable with Hitech 100mm holder systems or any 100mm (4") holder. Hitech filters are made from the highest quality 1.5mm optical resin.