For Konica Hexanon AR lens to Sony NEX E-mount Camera NEX-3 NEX-3C NEX-5 NEX-5C NEX-5N NEX-5R NEX-6 NEX-7 NEX-VG10 etc There are no electrical contacts within the adapter ring Exposure and concentration has to be adjusted manually; Auto concentration (AF) isn't out there This fabulous adapter can allow the camera householders to increase the cameras&; magnification and working distance With precise design and excessive know-how of brass and aluminum (not plastic); Smooth floor for effortless mount; Anodized aluminum construction, eradicate and function lens easily Certain prime lens just can&;t be replaced, so you may perhaps save the cost of buy on new lenses with this adapter ring NOTE: If your digicam indicated "lens isn't always correctly installed" otherwise you can&;t launch the shutter,please regulate the digital camera menu settings Usually referred to as the "release the shutter the lens isn't always installed", you may adjust the settings to permit Specifically discuss with the digital camera handbook Please note: Infinity focus position:the role of the infinity mark 【∞】of the telephoto lens or great telephoto lens is shifted slightly to the positive side to allow focus adjustment even when focus shift is precipitated thanks to temperature changes shift differ is denoted through an L-shaped line, Be certain to test the focus through the viewfinder even when you shoot at infinity