Compatibility: For Olympus PEN E-P7, E-PL10, E-PL9, E-PL8, E-PL7, E-PL6 with Olympus M.Zuiko Digital ED 14-42mm lens. Package Included:1 x 37mm Graduated Filter (Note: camera and lens are not included) Specification Gradient filters provide a gradual color transition for a smooth mixing effect. Each of the filters features a colored half that adds colour to a part of the image, while the clear half maintains neutral color balance. Each of the filters is made of optical glass and is inserted in rotating aluminium filter rings to control the placement of the paint on the frame.