•Lens Construction:7 elements; 6 groups (6G1P)
•Magnification:0.32X
•Compatible camera and lens (Recommendation):Sensor Size: 36mm X 24mm(Full Frame) Camera Lens: 60mm(35mm Equivalent)-F/2.8
•Field of View Conversation:60mm(39.7)>4.9mm(154.8)
•Dome Lens:Optical Grade Polycarbonate Resin
•Glass/Coating:Optical Glass/Multi-Layer BBAR Coating
•Lens Barrel:Aluminum with Type II Anodizing
•Mounting:M67XP0.75
•Dimension:Ø125X135mm
•Weight(Air):1145g
•Weight(Underwater):220g
•Depth Rate:60m(197ft)