2 x adapter: 1 x A + 1 x B Attach C mount CCTV / movie lens to Micro-4/3 mount camera with this adapter. With bigger inner diameter suitable for lenses with big rear part. Lens compatibility: C mount (diameter 25.4mm) Camera: all digital cameras with Micro-4/3 mount, such as for EP1,EP2,EP3,EPL1,EPL2,EPL3,EPL5,-D; for G1,G2,G3,GH1,GH2,GF1,GF2,GF3,GF5,GX1 etc.. With this advanced lens adapter, you can mount Camera C Movie mount lens on M camera body . This fabulous adapter can enable the camera owners to increase the cameras' magnification and working distance. Focus: support Allows focus . Diaphragm control of the lens is set manually. High quality and compact. Suitable for:C mout camera lens with C- M adapter for M / M2 / M3 colour:black Material:Aluminum alloy Package Contents: 2 x adapter Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.