Description:100% brand new and high quality.For N-ikon AI:This adapter is designed for N-ikon AI/NI SLR camera, allowing M48 x 0.75mm lenses to be mounted onto camera bodies for N-ikon.M48mmx0.75 adapter for N-ikon AI/NI SLR camera to telescope eyepiece photography.With this adapter, you can adapt your M48 mount lens for N-ikon AI mount DSLR.The adapter has no electrical connection and diaphragm & focusing are required to be set by manual.Compatible for N-ikon D40 D3000 D3100 D5000 D5100 D80 D90 D200 D300 D300S D7000 D3000 D60 etc.Specification:Material: AluminiumColor: Shown As PicturesLens Screw Mount: T M48*0.75mmOptional M48*0.75 Adapter: for N-ikon AIDiameter: Approx. 66mm / 2.6inchNote:No retail package.Transition: 1cm=10mm=0.39inchPlease 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