VILTROX NF-M43X Speed Booste 0.71x Lens adapter for Nikon F lens to Micro Four Thirds M43 Camera Manual infinity focus

Build-in 4 groups,5pcs optical glasses,manually adjust aperture .(F2-F8 adjusting scale ).Allowing you to get in the larger area of light and achieve the depth of field that you prefer Reduced imaging focal length, the actual focal length after using mount adapter for 0.71 times the focal length PLEASE NOTE :While this adapter allows users to mount a F lens on their Micro Four Thirds camera, automatic functions such as autofocus and electronic aperture control will not be supported Ring at the bottom with 1/4 screws, which can easy installed on the tripod or other fixed bracket it comes with 60-Days return-back guarantee when you received the item but you do not satisfied with our item