Fotasy Adajustable M42 42mm Screw Mount Lens to Nikon 1 Mirrorless Camera Adapter, for Nikon V1 V2 S1 S2 J1 J2 J3 J4 J5 AW1 Professional designed M42 42mm Screw Mount Lens to Nikon 1 Mirrorlesss Camera Adapter Ring Fits M42 42mm Screw Mount Lens, eg. Pentax Takumar lens. There are no electrical contacts in the extension tubes. Exposure has to be adjusted manually. Aperture control is not available if you use a lens which does not allow you to manually adjust the aperture (without an aperture ring). For NIkon V1 V2 S1 S2 J1 J2 J3 J4 J5 AW1 Pls note this the position of the lens can be adjusted when using this lens adapter.