uploaded to TPF on 2014_0122 at http://www.thephotoforum.com/forum/canon/350295-what-canon-accessory-can-t-you-live-without.html

The Fotodiox Pro Adapter, allowing f/stop control of Nikon G-series lenses mounted onto Canon EOS bodies. It allows a Canon user to finally put some decent glass on a Canon, like the Nikkor 14-24mm f/2.8. It helps overcome Canon's longstanding weakness in wide-angle lenses and wide-angle zooms.A little over $100 from Fotodiox.com's web site or from larger retailers.