Blackwing 20.7mm Lens PL Mount & Case 20.7 mm Lens: Maximum Aperture: 9 Minimum Aperture: T22 Image Circle: 50mm max illumination Close Focus:0in / 23cm Weight:2lb / 1.5kg 1500 Case: Watertight, Dustproof Case Made of Ultra-High Impact Copolymer Three Piece Foam Insert Automatic Pressure Equalization Valve Easy Open Double Throw Latches Rubber Over-molded Handle
