Lens Mount: C mount / 16MM / Cine. With the adapter, user can use it on MFT M4/3 camera, fits Panasonic G1 G2 G10 GF1 GH2 GH1 GH2, Olympus E-P1 E-P2 E-PL1 E-PL2 * Focus Length: 35mm, Aperture: f/1.7 - f/8 - Close * Focus Operation: Manual; Aperture Operation: Manual * Package includes (1) 35MM lens and (2) C - M4/3 adapter. * 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.