Camera Lens Filter Step Up/Down Adapter Ring Set 37-82mm 82-37mm for All DSLR Camera Lens Mount Set Kit 9pc 18pc

features:1. Step up rings, also known as adaptor rings:It allow you to use filters and accessories that are not the same size as your cameras lens. Lenses and filters come in a large range of types and sizes and unfortunately they don't always fit together correctly. Fortunately there is a step up or step down filter for just about any need.2. How step up rings work:Step up rings provide a way to fit a larger diameter filter or accessory onto a smaller lens. The step up rings screws onto your lenses threading and provided a larger thread with with you can then attach other elements included more step up rings.3. How step down rings work:Step down rings work in the exact same way but instead provide a way to attach smaller accessories and filters to larger lenses.4. Szkoston's tips:The typically the farther away from the lens you place a filter the worse the optics will be. It is always best to look for the thinnest adaptor ring that you can find as these will keep the filter close to the lens.Step-up Ring Package Included:1 x 37mm-49mm Step-up ring1 x 49mm-52mm Step-up ring1 x 52mm-55mm Step-up ring1 x 55mm-58mm Step-up ring1 x 58mm-62mm Step-up ring1 x 62mm-67mm Step-up ring1 x 67mm-72mm Step-up ring1 x 72mm-77mm Step-up ring1 x 77mm-82mm Step-up ringStep-down Ring Package Included:1 x 82mm-77mm Step-down ring1 x 77mm-72mm Step-down ring1 x 72mm-67mm Step-down ring1 x 67mm-62mm Step-down ring1 x 62mm-58mm Step-down ring1 x 58mm-55mm Step-down ring1 x 55mm-52mm Step-down ring1 x 52mm-49mm Step-down ring1 x 49mm-37mm Step-down ring