One of the most appealing aspects of small mirrorless cameras like the Sony NEX-3 and NEX-5 is the availability of a wide range of interchangeable lenses, including non-Sony lenses. This Novoflex Adapter for Novoflex Mount to Sony NEX Camera makes it possible to mount a lens with the Novoflex mount to your NEX-3 or NEX-5 camera with a precision mechanical adapter. All lenses of the C- and D-series (with exchangeable camera adapter rings) are compatible. Automatic exposure metering (stop-down metering/aperture priority) is possible. The lens will focus to infinity using this adapter.