. Feature: Made of high-quality aluminum material, durable, firm, and stable. After the magnifying lens is connected with a suitable focusing cylinder, the adapter allows infinite focus for NEX cameras via the connecting ring. It is designed for movie lens or industrial lens modification. It enables lenses with shorter image distance to be adapted for NEX cameras. Compatible lenses: Lenses with M42 mount, such as Kilfitt Zoomar München Macro Zoomatar 90mm f/2.8, Fujifilm EBC Fujinon SF 85mm f/4, Ultra-Achromatic Takumar 85mm f/4.5, Tomioka Macro Yashinon 60mm f/2.8, Carl Zeiss Jena / Prakticar 1000mm f/5.6, Carl Zeiss / Voigtländer Ultron 50mm f/1.8, etc. Compatible camera bodies: Sony NEX E-mount cameras, including NEX-3, NEX-5, NEX-5N, NEX-7, NEX-C3, NEX-F3, NEX-5R, NEX-6. Note: Lenses with original M42 mount may not achieve proper imaging on NEX cameras when used with this ring. Adapter ring only; other accessories shown in images are not included. Specifications: Item Type: Adapter Ring Material: Aluminum Alloy Size: Outer Diameter: 60 mm, Thickness: 1 mm Color: Black Front Interface: M42 Back Interface: E-mount Quantity: 1 pc Instructions: 1. With some adapters, you may need to enable “shoot without lens” to use manual-focus lenses. 2. Some lenses can be mounted, but caution is advised with retractable lenses. 3. Although the lens fits physically, automatic diaphragm control, autofocus, and other electronic functions will not operate. Use stop-down metering, as the lens aperture cannot be controlled by the camera body. Shooting is possible in manual or aperture-priority mode. Note: No retail packaging included. 1 cm = 10 mm = 0.39 inch Please allow for a 1–3 mm measurement tolerance due to manual measurement. Due to variations between monitors, the displayed image may not reflect the actual product color. Package Includes: 1 x Adapter Ring