This is a Miyazaki Optical lens. The lens barrel has some play. You can still take photos with it as is, but it's for someone who can repair it. LEICA screw mount. It can be used with other mounts via an adapter. Since there is no L39 category in the mount selection, I have chosen the versatile αE mount. Please note that this is not an αE mount lens. Other features: Junk This is a used item. Please refrain from purchasing if you are looking for a new or like-new item.