Let the Haida 49-82mm Magnetic Step-Up Adapter Ring revolutionize your photography experience. This durable and high-quality adapter ring is designed to seamlessly attach to your lens by integrating into the front threads. It's an essential tool for photographers looking to expand their creative possibilities, offering the versatility to use a wide range of filters and accessories from the Haida magnetic series. The innovative magnetic design of this step-up ring allows for quick and easy filter changes, eliminating the need to unscrew them from your lens. This feature not only saves time but also reduces the risk of damaging your precious equipment. The first size listed in millimeters (49mm) refers to the filter thread size of your lens, while the larger millimeter size (82mm) indicates the filter or accessory size you can ""step up"" to. This means that this adapter ring is perfect for lenses with a filter thread size of 49mm that need to accommodate a larger filter size of 82mm. Experience the convenience and flexibility of the Haida 49-82mm Magnetic Step-Up Adapter Ring, a versatile and affordable solution for photographers seeking to enhance their lens capabilities..