Fits to which lens:
Lens with M42 mount,such as for Kilfitt Zoomar Muenchen Macro Zoomatar 90mm f/2.8 ,for Fujifilm EBC Fujinon SF 85mm f/4 ,Ultra-Achromatic Takumar 85/4.5 ,for Tomioka Macro Yashinon 60mm f/2.8 ,for Carl Zeiss Jena / Prakticar 1000mm f/5.6 ,for Carl Zeiss / VOIGTLAENDER Ultron 50mm f/1.8 .etc

Fits to which cameras' body:
Body with for Sony NEX E-mount,such as NEX-3C(NEX3) NEX-5C(NEX5) NEX-5N NEX-7 NEX-C3 NEX-F3 NEX-5R NEX6

Advice to use:
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 retractable 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 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