When using Canon to NEX adapter the EOS lens is set at minimum aperture and there is no way to control the aperture…oh no wait, Conurus just found a new way :)
As you can see from the video above it really works but unfortunately that is not a real solution for now. But I guess they will soon be able to make an adapter that allows the electronic control of EOS lenses. That would be a much better solution compared to the EOS to NEX adapter with built-in aperture control made by Kipon (Click here to read that article on SAR)!
Check out current Kipon adapter auctions at [shoplink 5559 ebay]eBay (Click here)[/shoplink].
See the list of all current EOS to NEX manual adpaters on [shoplink 5932 ebay]eBay (Click here)[/shoplink].