10-27-2015 06:01 AM - edited 10-27-2015 06:05 AM
There re are only 2 kinds of lens mounts for Canon Dslr cameras: EF mount and EF-s mount.
All Rebel cameras (T5, T5i, T3, T3i, t6i, T6s, etc) plus the 60d and 70d, plus
the 7d and the 7d2 use the EF-S mount.
All those cameras are called crop sensor cameras because their sensor is a little smaller. Crop bodies are interesting in that they can use BOTH kinds of lenses: EF and EF-s.
Full frame cameras can only use the EF lenses. They cannot use EF-s lenses. Full frame cameras are more expensive and include the 1d line, the 5d line and the 6d.