Built-In Aperture Adapter Ring for EOS EF Lens to E Mount
Built-In Aperture Adapter Ring for EOS EF Lens to E Mount A7III A9 NEX-7 6 NEX-3 NEX-3C A6500 A6000 A5100 A5000 NEX-VG10 VG20 FS700. 9 degree of adjustable aperture ring, may not the actual aperture value.