When the wide-angle conversion lens is mounted, the angle of view increases from 24mm to about 16mm (35mm film equivalent). (The lens can be used on land as well as underwater.)

 Specifications ]
[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

*The lens can be used on land, but slight vignetting (dimming) may occur in the four corners of the image. Slightly zoom in to telephoto to eliminate vignetting.
*A shadow may appear in the image if the built-in flash is used when the wide-angle conversion lens is mounted. It is highly recommended that you use an external strobe.