Neewer 35mm f1.7 2/3" CCTV Movie Lens, fits Sony NEX cameras with C-NEX adapter and MFT M4/3 Olympus Pen and Panasonic Lumix cameras with C-M4/3 adapter Lens Mount: C mount. With C-NEX adapter, user can use it on Sony NEX-3 NEX-5 NEX-VG1 camera. User can also use it on MFT M4/3 camera (Panasonic G1 G2 G1 GF1 GH2 GH1 GH2, Olympus E-P1 E-P2 E-PL1 E-PL2) with C-M4/3 adapter. Adapter not included. Pls note. Aperture(Max): f1.7. Aperture(Min.): f/16 - close Object distance: 3cm -infinite Note: The lens is good for Portrait Photography, but not good for Landscape Photography.