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Piece to provide light-tight connection for 51mm dia lenses to industry standard 80mm matte box.
The adapter clamps to the lens (or 51mm filter) with use of an aditional M2 x 10mm screw.
has been used with: Arri Std mount Cooke Kinetals 12, 37.5 & 100mm, Arri Std Cooke 50mm Panchro, C-mount Cooke Ivotal 50mm, all Brit.370 & EK6, Series VI filter holders. (please check your lens has a diameter approx 51mm at the front).