DSLRKIT Build in Aperture Canon EOS EF Lens to SONY NEX E Mount Adapter NEX-7 NEX-5-3 This adapter has Build in Aperture, adjustable aperture value from F2.8 to F22. This adapter only fits Canon EF Mount lenses or other manufacturers EF mount lens, do not compatible with CANON EF-S lens. Suitable For (1) LENS: Canon EF mount, (2) CAMERA: SONY NEX-7, NEX-5, NEX-3, (3) Camcorder: SONY NEX-VG10. Focus to Infinity. It is possible to use Macro rings and other accessories. Material: Brass Chromed and Anodized Aluminum, color : black.