Metabones has released a T Smart Adapter that provides AF and full electronic functions for Contax N lenses on Sony E-mount cameras.
Metabones Contax N Lens to Sony E-Mount T Smart Adapter (Order for $399) enables full use of Contax N-mount lenses with Sony E-mount mirrorless cameras. This Metabones Smart Adapter permits using these classic, optically refined lenses with full autofocus support when used with a camera offering phase-detection autofocus, and it also maintains IBIS image stabilization from select camera bodies to help control camera shake. There are no optical components of the adapter, so it maintains the original quality of the lenses, and it retains infinity focus.
A programmable function button on the side of the adapter can be used to adjust more than 50 different functions on the camera body, including depth of field preview, for intuitive use. Two electrical contacts carry power from the camera body and a 10-pin contact transfers EXIF data between the lens and the camera body.
Chromium-plated brass mounts are featured on both the camera and lens sides; rubber gaskets help prevent dust and moisture from entering; a satin finish mimics the feel of the lens itself; and the interior of the adapter is felt-flocked to reduce glare or internal reflections. A removable tripod foot is also featured, and has a 1/4″-20 mount and is Arca-type compatible for flexible use. An integrated micro-USB port permits easy installation of firmware updates.