This +1/2 diopter Brilliant² Tray Mount Studio Close-Up Lens, from Lindsey Optics, fits directly into 4 x 5.65" matte boxes, including those made by ARRI, Bright Tangerine, Chrosziel, Vocas, and other professional 4 x 5.65" cine matte boxes.
This Studio version Tray Mount Close-Up lens has a knurled stainless steel post mounted on the handle to improve handling in studio matte boxes and it also fits other rod mounted and lightweight clip-on matte boxes.
To create the Brilliant² Tray Mount Close-Up Lens series, Lindsey Optics mounted their 138mm Close-Up Lenses (Diopters) into a 4 x 5.65" matte box tray, allowing for quick and easy changes of close-up lenses in both clip-on and rod mount matte boxes. These large 138mm round lenses provide a 5.1" diameter clear aperture in the tray, allowing use with large lenses and wide angle lenses. These lenses also have a broadband multi-layer anti-reflection coating (MC Coating)