Sigma Lenses has announced a cool new service available for all of their lenses.
As of 9/2/13 Sigma will offer a Mount Conversion Service through which you can send in your lenses and Sigma will change the mount to be compatible with another camera system!
See more here: http://bhpho.to/19A00xs
Comment Below if this is something you might try!
Sounds cool. I can’t tell if it’s only Sigma lenses for the camera, or if you can convert a Nikon lens to fit a Canon camera…
When it gets closer, we will have to see how it goes.