DSLRKIT Takumar M42 Lens to SONY NEX E Mount Adapter with Tripod Mount NEX-7 NEX-5 NEX-3 This adapter makes Pentax Takumar M42 and Others Universal M42 lens can be used on NEX E mount SYSTEM cameras. This adapter have a extra Pentax Takumar M42 inner ring that shown in left of the picture. The adapter has a rotatable inner ring, after you install the lens,loosen the screw on the adapter with attached allen wrench,you can adjust the scale of the lens towards any direction as you need. Suitable For (1) LENS: M42; (2) CAMERA: SONY NEX-7, NEX-5, NEX-3; (3) Camcorder: SONY NEX-VG10. Adapter is built with 1/4in Screw tripod mount. It is possible to use Macro rings and other accessories. Focus to Infinity. Material: Anodized Aluminum