Adapts Screw Nikon Mount Lenses to fit on Sony E Mount NEX 

• The E-mount is a lens mount designed by Sony for their NEX ("New E-mount eXperience") series of camcorders and mirrorless cameras.
• Due to the short flange focal distance of the Sony E-mount, many lenses can be adapted to be used on the Sony E-mount, although a crop factor will have to be taken into account for all cameras with APS-C or Super-35mm sensor format.
• These adapters do not allow for autofocus, however automatic exposure is possible in the aperature priority mode.

• The Nikon F-mount is a type of interchangeable lens mount developed by Nikon for its 35mm format Single-lens reflex cameras.
• The F-mount was first introduced on the Nikon F camera in 1959, and features a three-lug bayonet mount with a 44 mm throat and a flange to focal plane distance of 46.5 mm.
• The company continues to use variations of the same lens mount specification for its film and digital SLR cameras.