【1】Professional manufacturing,exquisite workmanship,this Camera Lens Adapter is made of high quality aluminum alloy,durable,non deformation,also with corrosion resistant and glossy.Extinction method:professional-grade lens matt paint on the inner wall.External coating:black part hard oxidation process. | 【2】AMOTOK The ring adapter easily screws onto the front of any 58mm lens,and converts the thread size of your lens to the thread size of any other 52mm accessory(such as filters,hoods,flashes and lens converters),and other 52mm accessories.The purpose is to increase the diameter of the lens.yet can still be removed easily when not needed. | 【3】Compatible with:all 58mm camera lenses & 52mm accessories(UV,CPL,ND,Lens Hood,Threaded Lens).Your lens thread size will be printed underneath your lens cap or written somewhere on the lens barrel.This number is always prefixed by a"O"(diameter) symbol.For example:Ø58=58mm lens thread.This number can be found on the back of your lens cap.Make sure you order the correct size otherwise it will not fit your lens. | 【4】The first number of an adapter ring is always the lens thread size,the second number is the filter size of the accessory.If the first number is bigger,it's a step-down ring What is a step up ring?Step up rings,also known as adaptor rings,allow you to use filters and accessories that are not the same size as your cameras lens. | 【5】 Why Choose AMOTOK Brand?professional camera accessory manufacturer.Dedicated to provide products in high quality & good price.Made of metal sealing ring,much tighter.Laser fonts,much durable.