Red gradient lens is a relatively common gradient filter， in poor weather， not enough light day， shooting out of the picture is not saturated， we have to supplement with red gradient.Features:Half color， half clear with a graduated density transition for a smooth blending of color.Red gradient filter is a relatively common gradient filter， in poor weather， not enough light day， shooting out of the picture is not saturated， filter can enhances warm earth tones and is great for dramatic sky scenery. This filter is mounted on a rotating frame， so you will be able to rotate the coloring at any part of your image.Can be removed easily.This Photo filter is compatible with 72mm lenses. Specifications:Color: Graduated redMaterial of filter: Optical resinSize: 72mmPackage size: 11 * 9 * 1.5cm / 4.3 * 3.5 * 0.6inPackage weight: 59g / 2.09ozPackage List:1 * Filter1 * Carrying Box