Sigma makes lenses that are suitable for Canon cameras. They have lenses for both Canon mirrorless cameras and Canon SLR cameras. The lenses for Canon mirrorless cameras have an EF-M mount. You can use these lenses on Canon EOS M mirrorless cameras. For SLR cameras, Sigma has lenses with an EF or EF-S mount. The EF mount has been developed for full-frame SLR cameras and the EF-S mount is aimed at SLR cameras with APS-C sensor. Take a good look at which lens is suitable for your Canon camera.