Blackwing 17mm Lens PL Mount & Case 17mm Lens: Maximum Aperture: 9 Minimum Aperture: T22 Image Circle: 52mm max illumination Close Focus:7in / 22cm Weight:8lb / 1.75kg 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
