The 4 x 5.65″ +1/2 Diopter Brilliant Tray Mount Close-Up Lens from Lindsey Optics fits directly into 4 x 5.65″ matte boxes, occupying one slot in the matte box. A close-up lens with a strength of +1/2 is used to get very close-up images of small objects when the cine lens being used won’t focus that closely. To create the Brilliant Tray Mount Close-Up Lens series, Lindsey Optics mounted the 138mm Close-Up Lenses in a 4 x 5.65″ matte box tray. These large 138mm round lenses provide a 5.1″ diameter clear aperture in the tray, allowing use with large lenses and wide angle lenses. The lens have a broadband multi-layer anti-reflection coating. The unique tray mount design allows quick and easy changes of close-up lenses in both clip-on and rod mount matte boxes.