EF-S Lens adapter for Canon 6D EOS
Negative. And there are far better lenses for full frame. It's like putting hubcaps on a Mercedes.
Lens snobbery aside, that lens is popular with the Rebel crowd. I hated it but I may have had a bad copy. Too many people like it for mine to have been a representative sample. The lens I wish was EF mount is the 17-55, it was excellent.