37-30.5MM Step Ring (Turns 37mm into 30.5mm) For Canon, Nikon, Sony, Olympus, Pentax, Fuji, Panasonic, JVC & More Cameras & Camcorders + Microfiber Cleaning Cloth Made of high quality anodized black aluminum Extremely solid and lightweight. Specifically designed for your camera for a tight and secure fit. Ring adapter easily screws onto the front of your lens You can attach such accessories as: filters, hoods, flashes and lens converters