Farpoint's 1.25" nosepiece-to-C /CS mount male adapter for imaging through telescopes using a video camera. Has a standard 1.25" nosepiece on one side and a C / CS male thread on the other side. Fits into any telescope that uses a 1.25" eyepiece focuser The male threads connect to your C or CS mount video and security cameras for prime focus photography. Features: Precision machined from aluminum and black anodized Threaded to accept standard 1.25" (M28.5x0.6) astronomy filters. Specifications: Total Length = 35mm (1.38") Weight = 0.4oz Thread Specifications: C / CS thread = 1.00", 32-TPI male 1.25" filter thread = M28.5x0.6 Female Additional Information: Will not work on video cameras with a fixed lens or bayonet mount, or with cameras that don't have a C /CS thread female mount.