EF and EF-S lenses can be used on 400d.
There is a lot of lenses out there.
Yes, the Canon EOS 400D has both EF and EF-S lens mounts. Therefore, the TS-E 90mm WILL fit on the camera because it has an EF lens mount.
Absolutely yes. Canon EOS 450D has the same mount as Canon EOS 400D, wich is EF and EF-S.
Most lenses and mounts are proprietary so no Canon lens would fit a Pentax without some kind of adaptor.
No, a Canon lens will not fit on a Nikon camera because they have different lens mounts.
No, a Canon lens cannot fit a Nikon camera because they have different lens mounts.
No
The Canon AE1 lens will not fit a Canon digital. You can buy an adapter that will allow the lens to work in manual focus mode on the digital camera.
The Canon EF lens will only fit Canon SLR camera bodies, unfortunately.
Unfortunately, it will not. CANON and SONY have different lens mounting brackets.
NO
NO. The lenses are designed for a specific brand name camera. A lens for a Canon camera will only fit a Canon etc.
Yes, a Vivitar lens can fit a Canon T2i camera if it has the appropriate mount type. The Canon T2i uses the Canon EF or EF-S lens mount, so you'll need a Vivitar lens that is compatible with this mount. Check the specific model of the Vivitar lens to ensure compatibility before purchasing.