Description: brand new and high quality. Feature: Made of high quality aluminum material, durable, firm and stable for us to use. After the magnifying lens connect with a suitable focusing cylinder, for NEX-mount lens on the connecting ring can for focus indefinitely. It's used for movie lens or industrial lens modification. Suitable for other lenses with shorter for image distance are modified to for NEX-mount lens. Fits lens: Lens with M42 mount, such as for Macro Zoomatar 90mm f/2.8 ,for Fuji SF85mm f-4 , for Ultra-Achromatic 85/4.5 ,for Tomioka Macro Yashinon 60mm f/2.8 ,for 1000mm f/5.6 ,for VOIGTLAENDER 50mm f/1.8 .etc. Fits cameras' body: for NEX-mount,such as for NEX-3C(NEX-3) NEX-5C(NEX5) NEX-5N NEX-7 NEX-C3 NEX-F3 NEX-5R NEX6. The camera lens of the original M42 groove with the ring can not be imaged on for NEX-mount lens. Adapter Ring only, other accessories demo in the picture are not included! Specifications: Item Type: Adapter Ring Material: Aluminum Alloy Size: Outer Diameter: 60mm/2.3in, Thickness: 1mm/0.03in Color: Black Front Interface: M42 Back Interface: E Interface Quantity: 1 Pc Instructions: 1.With some ring adapters, you have to turn on 'shoot without lens' to use MF lenses with it. 2.Some Lens can mount, but be careful with adjustable lenses. 3.Although the lens will fit physically, automatic diaphragm, auto-focusing, or any other functions will not operate correctly while using this adapter. In this for case "stop-down mode" will need to be used when metering since the lens does not have the ability to have its aperture controlled by the camera body. You can shoot with manual mode or aperture priority mode. Note: No retail package. Transition: 1cm=10mm=0.39inch Please allow 1-3mm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package Includes: 1 x Adapter Ring