The Vizelex ND Throttle Adapter for Canon EF/EF-S Lenses to Sony NEX Cameras from Fotodiox enables you to connect your Canon EF and EF-S lenses to a Sony E-mount camera body, including full frame models. Furthermore, this adapter features a built-in 10-stop variable neutral density filter to control the amount of light entering the camera. An ND filter enables shooting in bright daylight while still using wide apertures for shallow depth of field. It also helps with fast exposure adjustments when going from bright to low light. A bright blue metal ring manually adjusts the filter from ND2-ND1000.

The adapter features a sturdy brass build with a leaf spring design which firmly holds the lens in place. Although the lens will fit physically, automatic diaphragm, auto-focusing, or any other functions are not supported while using this adapter. Because of this, stop-down mode is recommended when metering since the lens' aperture is not controlled by the camera body. You can shoot with manual mode or aperture priority mode. Infinity focus is supported.