Are you looking for a professional, yet affordable lens adapter ring? Are you in search of a sturdy, trustworthy tool that can do multiple jobs at once? If yes, look no further Our professional lens adapter ring must meet you needs. It is one of the best choices for you. Features - Color: Black. - Material: Aluminum alloy. - Size: 8.2 x 8.2 x 0.4 cm. - The ring adapter easily screws onto the front of any lens, and convert the thread size of your lens to the thread size of other accessory (such as filter, hoods, flashes and lens converters). - Specifically designed for your camera for a tight and secure fit. - This number can also often be found printed on the back side of your lens cap. The first number is always the lens thread size, the second number is the filter size of the accessory.If the first number is bigger, it& 39;s a step- down ring. If the first number is smaller, it& 39;s a step-up. - rings provide a way to attach smaller accessories and filters to larger lenses. - lightweight and portable, easy to install, and can save money, others can also improve some of the hidden corners of the problem.