An adapter is available (from other sources) so these lenses will mount and work on a digital EOS camera. When used without an adapter these will not fit the EOS cameras. These optics are for the AE-1, A-1, F-1, FTB, and similar film cameras. When used with an adapter these lenses will work fine on a digital EOS camera.
Adapting "New" Style FD mounts to Micro 4/3. An article.Click here.
Canon FD Optics work great on Sony Nex Digital cameras with an Fotodiox FD adapter.