【Lens Not Attached】:MANUAL LENS need you to enable "M mode " or "Release without lens" in the setting of camera 【Compatible with】:for Sony Full Frame and Sony E Mount APS-C Mirrorless Cameras for Sony Full Frame and Sony E Mount APS-C Mirrorless Cameras A7 A7 II A7III A7S II A7S III A7R II A7R III A7R IV A9 A9II A7C A6100 A6300 A64000 A6500 A6600 NEX 3 5T NEX 6 7 【Lens construction】:12 elements 7 groups, multi-layer coatings, minimum focusing distance of 0.6 【Meike Lens type】:Prime lens fixed focal length 50mm,Wide angle lens. Maximum aperture of 1.2-22 delivers smooth bokeh,fit Close-up/portrait photo photography. 【50mm f1.2 Fit E-Mount】:Full Frame visual angle: diagonal 46.9° horizontal 39.3° vertical 26.4°,APS-C visual angle: diagonal 33.1° horizontal 25.8° vertical 17.4°