The 4 x 5.65" +1/4 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 +1/4 is used to get very close-up images of small objects when the cine lens being used won't focus that closely.
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