M42 to Sony NEX E lens mount adapter Item is new and never been used. It is generic brand, made in China. It is good quality. Made of metal. It will allow you to use M42 lenses on Sony E mirrorless cameras. Such NEX or ILCE 5R, C3, etc. Compatibility: It would work only in M mode. Adapter does not have a chip. So you would have to adjust aperture and focus manually. All manual lens. Compatibility: This lens will work any Sony E mount camera. Such as NEX-3, 5, 6, ILCE -3000, 3500, 6000, 5100, etc cameras. Please note that you will have to set up your camera to accept manual focus lenses or it will show error. E-mail me if you don't know how to do that. It will be shipped with original box, item is new and never been used. Shipping is Free within USA and $10 via USPS first class mail worldwide. You can choose faster and more expensive shipping during checkout.