The Canon RF mount is a lens mount system introduced by Canon in 2018 for its full-frame mirrorless cameras. It features a larger diameter and shorter flange distance compared to the previous EF mount, allowing for improved optical performance and more versatile lens designs. The RF mount supports a wide range of lenses, including prime and zoom options, and is compatible with Canon's EF and EF-S lenses through an adapter. This flexibility enables photographers to use existing lenses while benefiting from the advanced technology of the RF system, enhancing their creative possibilities.