【 Function】You can mount M42 screw mount lens to Sony Alpha E-mount mirrorless cameras. 【 Material】All-metal design; hardened anodized aluminum construction,matting varnish inside to avoid light reflection. 【 Features】Supports manual control, manual focus, manual exposure and focus to infinity. 【 Cameras Compatibility】Designed for Sony Alpha E-mount Cameras: Sony Alpha α7, α7R, α7S, α7 II, α7R II, α7S II Sony Alpha α3000, α5000, α6000, α6300, α6500,α3500, α5100, αQX1, PXW-FS7 Sony NEX-3, NEX-5, NEX-C3, NEX-5N, NEX-7, NEX-F3, NEX-5R, NEX-5T ,NEX-6, NEX-F3, NEX-3N Sony NEX-VG10, NEX-VG20, NEX-VG30, NEX-VG900, NEX-FS100, NEX-FS700, NEX-EA50 etc. 【 Note】 Infinity focus position：the position of the infinity mark 【∞】of the telephoto lens or super telephoto lens is shifted slightly to the positive side to enable focus adjustment even when focus shift is caused due to temperature changes.The shift range is denoted by an L-shaped line, Be sure to check the focus through the viewfinder even when you shoot at infinity. Lens adapter