Fotodiox Pro Lens Mount Adapter with Focusing Barrel, for Mamiya RB67 & RZ67 lenses to Sony E-Mount Mirrorless Camera Adapter - for Sony Alpha E-mount Camera Bodies (APS-C & Full Frame such as NEX-7, α5100, α7II)

If you have a SLR or DSLR camera and other maker/mount lenses, the Fotodiox Mount Adapters allow you to use your lenses on the film/digital camera body. Sharing lenses has some distinct advantages. Certain prime lens just can't be replaced, and you save the cost of purchase on new lenses. Fotodiox offers a range of adapter from large format to smaller format digital adapters. Adapting larger format lens to smaller format sensors (i.e: large format to medium format, medium format to 35mm, 35mm to micro 4/3) provides excellent edge-to-edge sharpness. The smaller image field helps minimize the effects of lens distortion and aberration by using the 'sweet spot' or center of the larger lens image circle.

This Fotodiox lens mount adapter is made with high standard precision. The all metal design and polished surface is designed to guarantee smooth mounting and long lasting experiences. As all Pro series adapters, these adapters have been specially crafted to endure professional lenses. No "play" between lens and camera. Aperture Priority or Manual Mode is required while adapter is attached. Built-in Focusing Helicoid allows focus with any Mamiya RB67 or RZ67 lens, super smooth and precise focusing barrel.

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. Infinity focusing is guaranteed.

Compatible Cameras
Sony Alpha E-mount Cameras (Including, but not limited to):
Sony Alpha α7, α7R, α7S, α7 II, α7R II, α7S II
Sony Alpha α3000, α5000, α6000, α3500, α5100, αQX1, PXW-FS7
Sony NEX-3, NEX-5, NEX-C3, NEX-5N, NEX-7, NEX-F3, NEX-5R, ,NEX-6
Sony NEX-VG10, NEX-VG20, NEX-VG30, NEX-VG900, NEX-FS100, NEX-FS700, NEX-EA50