Lens mount adapters are designed to attach a lens to a camera body with non-matching mounts. Generally, a lens can be easily adapted to a camera body with a smaller flange focal distance by simply adding space between the camera and the lens. When attempting to adapt a lens to a camera body with a larger flange focal distance, the adapter must include a secondary lens in order to compensate. This has the side effect of decreasing the amount of light that reaches the sensor, as well as adding a crop factor to the lens. Without the secondary lens, these adapters will function as an extension tube and will not be able to focus to infinity.
- Allow Contax RF / Nikon S mount lenses used on Sony E NEX/Alpha camera body.
- Compatible with Sony E NEX/Alpha camera includes: Sony NEX-3, NEX-3C, NEX-3N, NEX-5, NEX-5C, NEX-5N, NEX-5R, NEX-5T, NEX-6, NEX-7, NEX-C3, NEX-F3, NEX-VG10, a7, a7R, a9, a3000, a3500, a5000, a5100, a6000, a6300, a6500, a7S, a7 II, a7S II, a7R II, a7R III etc.
- Made of brass and aluminum. Stable, precise and durable construction. Manually operated. Infinity focus allowed.
- For heavy medium format lenses, we suggest to use with a telephoto bracket and a tripod to balance its weight when shoot.
- 30 Days No Reason Return, 12 months quality guarantee, 100% satisfaction assurance.