Sharp Eye Macro Lens 67mm thread Macro lens with a 67mm thread. Can be mounted on 67mm threaded lens ports or other lens ports by using an adaptor. The SharpEye M67 is an accessory macro lens which fits over the housing's 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 a compatible adaptor. Specifications: Lens Construction: 2 groups, 2 elements Focal Length/Diopter: 250mm / +4 (Underwater) Mounting: M67 thread mount Lens Coating: multi AR coating + water repellent coating (outer surface) Barrel Material: Aluminum with black anodize Weight: 138g Dimensions: 72 x 22.3mm Depth Ratio: 60m/200 feet