Lens Mount: C mount / 16MM / Cine. Focus Operation: Manual; Aperture Operation: Manual Aperture: F1.4 - F16 * With additional lens adapter, user can use it on Sony NEX- E-Mount camera, eg. NEX-3 NEX_5 NEX-C3, NEX-5N, NEX-7, NEX-VG10, NEX-Vg20. * User can also use it on MFT M4/3 camera (Panasonic G1 G2 G3 G10 GF1 GF2 GF3 GH3 GH2 GH1 GH2, Olympus E-P1 E-P2 E-P3 E-PL1 E-PL2). * Pls note lens adapter is not included. User need additional lens adapter if they want to use it on M43 and NEX camera. * Pls note: This lens is good for Portrait Photography, but it not good for Landscape Photography. The sharpness in the center is fine, but the border is soft. It looks like a tilt lens.