★★[Important]Read Before Ordering(1)77mm lens: Make sure your lens size is 77mm, and the filter size is 82mm, so choose the 77-82mm adapter ring, but not 82-77mm adapter ring. (2)How to find my lens thread size? Your lens thread size will be printed on the front of your lens or on the body of your lens. The number is always preceded by a “Ø”(diameter) symbol. For example: Ø77 = 77mm lens thread size.Please do make sure to order the correct size otherwise it will not fit on your camera lens.★★Specification●Compatibility: all 77mm camera lenses & 82mm accessories.●Material: special aviation aluminum alloy, high strength, impact resistance●Color: pure dumb black●Interface: small caliber is external screw thread (connected to lens end), and large caliber is internal screw thread (connected to screw mount accessories such as filters, hoods, flashes and lens converters, etc.)★★What problems can be solved?1. The purpose is to increase the diameter of the lens. 2. The adapter ring can be mounted to the front of the lens to achieve different diameter share the same lens diameter filter, lens hood and other accessories.3. When you buy a new lens with a different diameter, and you don't want to buy another set of filters for it.4. Save money and improve the problem of some dark corners. ★★Package2×77-82mm Adapting Ring★★Guarantee●We offer 120 days no reason to refund. ●Any problem, contact us first please. We will solve it to your satisfaction.