Not all Canon camera lenses will fit all Canon cameras. There are five different types of lenses for Canon's interchangeable lens cameras, including the RF, RF-S, EF, EF-S, and EF-M. To know which type of Canon camera lens you'll need, you need to identify your Canon camera type. Most full-frame Canon DSLR cameras will accept the EF mount series of lenses, while crop-sensor Canon cameras can accept both the dedicated EF-S lenses and the EF series lenses, with a crop factor. Mirrorless Canon cameras are designed to be compatible with RF series lenses. Canon lens adapters can be used by EOS R System and EOS M series camera owners for full compatibility with EF and EF-S lenses. For official compatibility information, refer to the Canon Camera Lens Compatibility Guide, or reach out to us, and we'll be happy to help you find the right lenses for your Canon Camera.