Commlite Auto Focus Eos-nex Ef-nex Ef-emount Fx Lens Mount Adapter for Canon EOS Ef-s Lens to Sony E Mount NEX A7 A7r Full Frame Auto-focus function. Aperture exactly being aligned via the mount adapter. Built-in IS function.Full-frame adapter aperture hole design, perfectly supports Sony full-frame camera A7/A7R. Zinc alloy core makes the adapter strong and powerful. Gold-plated pins brings the great conductivity of signal transmitting. 1/4 Female thread screw for mounting onto the tripod.