The Sigma MC-11 Converter is a revolutionary product designed to allow compatibility between Sony E-Mount Full frame and APS-C cameras and Sigma Canon EOS mount and Sigma mount lenses. Utilizing the latest technology, the MC-11 supports fast and accurate autofocus and will work in conjunction with in-camera stabilization and in-lens stabilization. An LED display on the adapter shows the user if their lens is compatible and the MC-11 is also updatable with Sigma’s USB docking station. Flocking inside of the converter allows the image to be maintained while the internal electronics record all data from the image for later review. Functions such as Eye Detection and Continuous Autofocus are supported through the MC-11. Like all Sigma Global Vision products, each converter is hand crafted in our single factory in Aizu Japan, individually inspected before shipping and offers a 4 year USA warranty.