Optimal use only with Sigma lenses of the series Art / contemporary / Sports The connection converter MC-11 makes it possible to use interchangeable lenses with SIGMA EF connection to camera housings with the Sony E-mount. There have been various methods in the past that have made it possible to use lenses of a particular camera system on a chassis with a different system. However, today's digital camera systems are much more complex and it is a difficult task to develop a port converter that matches both the mechanical components and the software requirements of lenses and cameras. Even greater difficulties arise in the development of a converter, which should allow the attachment of lenses for DSLR cameras to the housing of mirrorless interchangeable lens cameras. In today's photo market, there is a great need for such a converter that not only adjusts the footprint but also maintains full functionality. The MC-11 Connection Converter contains the data necessary to ensure a fast and smooth AF and OS with the compatible lenses. At the same time, they ensure compatibility with the camera functions that ensure edge illumination and correct lateral chromatic aberration, distortion and other problems. Since the Sony E-mount camera bodies do not require the integration of lenses with a mechanical iris control, the SIGMA interchangeable lenses with Canon connection using the MC-11 connector converter are fully compatible with the automatic exposure control of the Sony E-mount cameras. The MC-11 Connection Converter is an ideal complement to the equipment of professional photographers who work with different camera systems depending on the subject and offers great advantages for amateur photographers, who often use different camera systems. The own equipment gains significantly in value, if the available lenses with different camera systems are compatible. In addition, users of Sony E-mount cameras with the converter can get an even wider range of compatible lenses