The Genus GARD-NK Nun's Knickers Do-nut Adaptor Ring (so called as an industry tongue-in-cheek nick-name) is a do-nut ring fitted with a black-out fabric cover that wraps around the barrel of your lens to block out any light completely. The 105mm plastic ring fits snugly into your matte box and the elasticated fabric cover wraps around the barrel of your lens. The flexibility of the fabric ensures that it can be used with lens diameters 72mm upwards.

Matte Boxes

Genus Adapter Ring 52mm-95mm

Genus Adapter Ring 58mm-95mm

Genus Adapter Ring 62mm-95mm

Genus Adapter Ring 67mm-95mm

Genus Adapter Ring 72mm-95mm

Genus Adapter Ring 77mm-95mm

Genus Adapter Ring 82mm-95mm

Genus Basic Matte Box Kit

Genus DSLR Matte Box Kit

Genus DSLR Ultimate Matte Box Kit

Genus Deluxe Matte Box Kit/3 Filter

Genus Donut Adapter Ring

Genus Elite Filter Tray 4x4

Genus Elite Filter Tray 5.65 x 5.65

Genus Elite Matte Box

Genus Matte Box Lite

Genus Superior Matte Box Kit

Genus Ultimate Matte Box Kit/3 Filter

Genus Wide 4x4 Matte Box

Petroff Matte Box 4x4 Wide Angle (includes 2 filter stages)

Petroff Matte Box 4x5 Universal Wide Angle (includes 2 filter stages)

Petroff Matte Box 5x5 (includes 2 filter stages)