Electronic Auto Aperture Canon EF EOS Lens to Sony E NEX5 NEX 7 FS700 VG Adapter | eBay (http://www.ebay.com/itm/Electronic-auto-Aperture-Canon-EF-EOS-lens-to-SONY-E-NEX5-NEX-7-FS700-VG-adapter-/200822676987?pt=US_Lens_Adapters_Mounts_Tubes&hash=item2ec1f6ddfb)

I am interested in metabones, but it is always out of stock

I have one. I use it with my Sony FS-100. Works fine controlling the iris on my Canon lenses. Solid feel as well.