This is a high quality Canon EOS Lens to Sony NEX Adapter Ring with Aperture Gold. You can use this camera adapter ring in conjunction with the camera adapters to complete the connection to a digital camera supporting a filter thread.                                    Features                New and high quality， EOS-NEX Aperture Size can be adjusted<br>    Although the lens will fit physically， automatic diaphragm， auto-focusing， or any other functions will not operate correctly while using this adapter<br>    It is able to focus to infinity<br>    Made of aluminum (not plastic)<br>    For some lenses， there will be vignetting with varied extent<br>                                                            Specifications                        Dimensions     2.52 x 1.14 in (R x H)    <br>          Weight     5.22oz    <br>          Color     Gold    <br>                                                             Package Includes                1 x Canon EOS Lens to Sony NEX Adapter Ring with Aperture Gold<br>