The Coral Grad Kit includes the popular soft edge grads in densities 1, 2 and 3. The Coral color grad filters are a pale pink color. Coral Filters can be considered as both Color Correction and Color Effects Filters and are used to warm cool lighting situations such as overcast days. Soft edge grads have a smooth transition from clear to the color. Different graduated color filters can be used in combination together or with solid color or neutral density filters to give interesting bespoke effects. Formatt-Hitech filters are made from the highest quality 1.5mm optical resin.