The lens can be used on land as well as underwater, when the wide angle conversion lens is mounted, the angle of view increases from 24mm to about 16mm (85° underwater coverage).
Can be attached easily in one turning action utilizing the bayonet system; can be attached and detached underwater.
[Lens ] 3 elements in 3 groups
[ Underwater angle of view ] 85 ° (106.5 ° on land)
[ Magnification ] 0.65x
[ Depth rating ] 60m / 200ft
[ Weight: Approx ] 406g / 14.2oz (underwater: Approx. 230g / 8.1oz)
[ Dimensions ] (DIAxD) 97x48.5mm / 3.9x1.9 inch