The SharpEye Lens M67 +8 is an accessory macro lens with a +8 diopter which fits over the housing lens port and can be installed and removed during the course of the dive. It is perfect for shooting close-up images of fish, corals, textures and more. The macro lens magnifies the subject and enables the camera to focus on short distances for creating super sharp images. It can be mounted on 67mm threaded lens ports or other lens ports by using an adaptor. The lens is constructed with 2 groups and 2 elements and a multi AR coating + water repellent coating (outer surface) with the barrel constructed from aluminum with a black anodize finish. This corrosion resistant lens weighs 4.76oz (135g) measures 2.83" x 0.89" (72mm x 22.5mm) with a focal Length/Diopter of 4.92" (125mm / +8) underwater. The lens is depth rated to 200' (60 meters). The Fantasea SharpEye Lens comes with an instruction sheet and is covered by a 12 month limited warranty.