Please read to the end. Carl Zeiss Planar 1.4/50 lens Camera mount adapter K&F CONCEPT C/Y-NEX Yashica → Sony included - Model name: Planar 1.4/50 - Brand name: Carl Zeiss - Serial number: 6435320 Size... Although it says α E mount, The lens body is C/Y mount. This is an old product, so there are scratches and dirt. Please understand. Since the rear cap of the lens body is missing, it will be shipped with the mount adapter attached as shown in the photo. In this state, you can attach it to a SONY E-mount camera and enjoy manual focus. Thank you.