Description: This Lens Mount Adapter is mainly used to connect the "Leica L39-Nex Lens Series" to "Cameras with Sony Nex and Mount". Suitable for NEX-5N, NEX-5N, NEX-5R, NEX-5R, NEX-5N, NEX-5N, NEX-5R, NEX-5R, NEX-5N, NEX-5N, NEX- NEX6, NEX-7, A5000, A5100, A6000, A7, A7R, A7S and other E-mount bayonet micro single camera. Fully manual control, manual focus and manual exposure. There is no electrical connection on the ring so the lens diaphragm control is adjusted manually. Specification: Material:Metal Diameter:55mm Height:15mm Color:Black Camera:for SONY NEX-F3,NEX-N3,NEX-3...E Mount Cameras. Package Includes: 1x L39-Nex Mount Lens to E mount adapter for Sony 1x Wrench Note: How to use: Transfer ring use: 1, first in the camera menu to enter the setting option "no lens shooting" open (in the menu - set - press down press ... there is no lens when the release button option), the general open the peak auxiliary focus, that is, When the focus is red, the peak is thick and the optimal setting for the adapter is used 2, the use of LCD focus, composition metering are simple control, all for the manual aperture / focus, easy to watch real-time! 3, you can use the MF zoom focus function (usually softkey B, the lower right corner sinking button), 7 times or 14 times the zoom focus, to achieve the focus function 4, you can use the M file or A file (support auto metering) mode to shoot, enjoy the fun of the manual!