DescriptionIf you are looking for a professional and affordable camera stepping ring adapter, then your research is over here. That's because our product can meet your need. Adopted of premium material, it is practical and durable for long time use. It is not easy to get deformed and bring you much convenience.Features-Color: Black-Material: Copper-aluminum magnesium alloy-Size: 6.50X6.50X1.00cm/ 2.55X2.55X0.39in Exif fixed parameters: 50mm F2.0 - After the focus is achieved, there is an indicator light and a sound prompt, convenient to use. - This camera step up ring supports AV (aperture priority) and manual mode. - Made with premium copper-aluminum magnesium alloy material, durable and long lasting in use. - Lightweight and portable, reducing the thickness and weight of the adapter ring. - Exquisite workmanship, reasonable structure, professional and practical, can bring you convenience.