Lens Construction: 3 elements; 2 groups
Diopter (Underwater Focal length) :+5(200mm)
Working Distance :180mm - 220mm (From 1st Lens Suface)
Max Magnification: x2
Dimensions:Φ70X28mm
Mounting:M67X P0.75
Weight (Air) :180g
Weight (Underwater) :115g
Depth Rate :100m