【High Quality】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 | 【Unique Design】AMOPOFO Transform caliber adapter ring, can be mounted to the front of the lens to achieve different diameter share the same lens diameter filter, lens hood, additional lens and other accessories. The purpose is to increase the diameter of the lens. Besides for making financial sense, this allows you to use your favorite lens across different size UV,ND,CPL , the lens adapter is designed to fit securely to the lens, yet can still be removed easily when not needed. | 【Suitable】Canon,Nikon,sony,Fuji,Sigma, Tamron Camera Compatible with all 37mm camera lenses & 49mm accessories. Your lens thread size will be printed underneath your lens cap or written somewhere on the lens barrel. Make sure you order the correct size otherwise it will not fit your lens. | 【Product Description】: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. Lenses aND UV CPL come in a large range of types and sizes and unfortunately they don't always fit together correctly. Fortunately there is a st | 【Note】 Why Choose AMOPOFO Brand Concept？ professional camera accessory manufacturer. Dedicated to provide products in high quality & good price. Made of metal sealing ring, much tighter. Laser fonts, much durable Meet Environmental Standards of RoHS