Alpa Silex unit offers electronic control of Canon and Nikon lenses on digital medium-format backs

Swiss camera and adapter manufacturer Alpa has introduced a new device that allows Nikon and Canon users to mount some of their lenses on digital medium format backs and have access to aperture controls. The Alpa Silex control unit works with the company's 12 series bodies and brings aperture control to electronically operated lenses from Canon and Nikon, as well as Contax, Hasselblad and Rollei. All Canon EF lenses can be controlled but only Nikon E lenses, with electromagnetic diaphragm mechan...