There are slight scratches on the front lens that do not appear in photos, and do not affect the image quality. WEEFINE WF Macro Conversion Lens WFL03 +12 This macro conversion lens is designed for the [WF Smart Housing]. It can also be used with compact camera housings with 1-inch sensors. It uses the versatile M67 mount. Diopter +12, the focal length underwater is 83mm. Magnification is 1.8x, and the working distance is 10-65mm, allowing for a wide range of photographic expression that is impossible with a smartphone alone. The [WF Lens Holder SH], sold separately, is required for use with the WF Smart Housing. 【Specifications】 Material: Optical glass, corrosion-resistant aluminum alloy Size: φ72 x 50mm Lens construction: 3 groups, 3 elements Magnification: Approximately 1.8x Working distance: 10mm - 65mm Weight on land: 307g Weight in water: 160g Pressure resistance: 60m Lens mount: M67