With this new advanced lens adapter, you can mount Camera C Movie mount lens on 1 camera body (J1/V1/J2/V2/J3/V3). This fabulous adapter can enable the camera owners to increase the cameras' magnification and working distance. Allows focus . Diaphragm control of the lens is set manually. High quality and compact. Suitable for: C-mount Camera lens with C- 1 adapter for 1 Mount Camera: V1 / J1 / V2 / J2 / J3 / V3 / S1 / S2 / AW1 / J4 colour:black Material:Aluminum alloy size:16mm Package Contents: 1 * Camera 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.