12mm Lens With Focus Ring For GoPro Hero 3 and 4 Cameras

The new 12mm lens fits in the underwater waterproof case with focus ring allowing perfect macro focusing on the fly, no fish eye narrow view. Great for hunting, paintball, archery, and many other activities. To use in the waterproof case you must remove the foam piece in the rear hatch so it can fit perfectly, if you don't remove it the door will not shut, it will fit too snug.