Marking a new chapter in the history of EOS, the EOS R system is built for imagemakers who demand high-performance capture, a full-frame sensor and excellent ergonomics. A 54mm diameter lens mount enables RF lenses to have large rear elements, while a mirrorless design brings them closer to the sensor for bright, sharp and compact lens designs. A 12 pin electronic connection delivers fast communication between the camera and the lens, facilitating a versatile and powerful system. Plus, with a variety of mount adapter options, it’s easy to incorporate your EOS R system into an EOS system and expand your creative opportunities.