Can I use Canon & Fujica lens from my old Canon film SLR camera with Canon 400D?
If your old Canon film SLR was a manual focus camera, the answer is No. When Canon switched from their manual focus mount to their EOS EF mount, none of the old lenses would work. I don’t know of any Canon-EOS mount Fujica lenses, so most likely you have a manual focus camera. There are adapters that pop up on eBay that claim to allow the use of older lenses on the modern AF bodies, but in fact the lenses don’t focus to infinity with the adapters and they certainly don’t meter. So the simple answer is no.