Description Attach your C mount lens to your Fujifilm X mount camera with this adapter. There is no electronic element in the adapter, aperture and focusing must be manually control. This fabulous adapter can enable the camera owners to increase the cameras' magnification and working distance. Specification The Original Focal Length = 25mm Mount Type: C-Mount Aperture: f/1.4 Iris Operation: Manual Focus Operation: Manual Angle of View: 19.6 Object Distance (O.D.): about 30cm .
eBay