This Mount Adapter that can use for EF EF-S lens on NEX E Mount cameras and Alpha A7R2/A7II full-frame with Auto Focus ability, a great choice for users both own NEX cameras and lens. Suitable for NEX-A7R2/A7S2 full frame NEX cameras, 35mm Full frame NEX camera is also applicable. A good 'AF" (autofocus) function!!! Allows auto focusing with EF / EF-S mount lenses. Allows focus . Built-in hand-shaking IS function;Gold-plated pins brings the great conductivity of signal transmitting;Aperture exactly being adjusted via the mount adapter;Full-frame adapter aperture hole design. Compatible with:for E-Mount camera such as A9 A7RIII A7RII A7II A7S A6000 A6300 A6500 A5100 NEX-7 NEX-5 NEX-5N NEX-3C with EF/EF-S Lens. Specification: Material:Aluminum Color:Black Compatible Lens: for EF/EF-S Series Lens Compatible Camera:NEX-3C NEX-5 NEX-5R NEX-5R NEX-5C NEX-6 NEX-7 NEX- VG20 VG30 VG900 FS700 A7S Front Mount: for EF Mount Rear Mount: for E Mount Camera-Mount Outer Diameter: 45mm Lens-mount Puter Diameter : 65mm Tripod Screw: 1/4 screw Length : 85mm Net Weight: 159.5g Feature: Auto-focus function Electronic Aperture Control Support Lens IS Stabilization Function Gold-plated Contact Pins for Great Conductivity Detachable 1/4 Bottom Tripod Base Package Includes: 1 Piece Auto Focus Adapter for EF-NEX