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 lenses through an adapter. This system is designed to enhance autofocus speed and accuracy, making it suitable for both photography and videography.