The Canon EF-EOS R Control Ring Mount Adapter lets you connect your existing EF or EF-S lens to your new EOS R system camera. Canon engineers have ensured that you will maintain the same performance and functionality as on your DSLR. This adapter is fitted with a customisable control ring that lets you control your camera without your eye leaving the viewfinder. Canon EOS R adapters are built for tough environments and are weather-sealed against dust and moisture, while the lightweight (130 g) design is perfect for use on the go.BenefitsAllows you to use your EF and EF-S lenses on a Canon EOS R camera body, perfect for any photographer with a number of EF lenses in their kit bag who is looking to effortlessly upgrade to the Canon mirrorless R systemThis adapter features a lens control ring, which can be programmed via the cameras menu for customised adjustment of various settings such as aperture, shutter speed, ISO and exposure compensationDesigned by Canon engineers to maintain the s