The distance from the reference surface to the focal point of the C-mount is 17.562 mm, and the focal length of the CS is 12.5 mm.
C-MOUNT 5mm Extension Tube Adapter C-CS Mount Adaptor Spacer Ring For CCTV L _wo
C-MOUNT 5mm Extension Tube Adapter C-CS Mount Adaptor Spacer Ring For CCTV Lens
Deluxe Henry Hoover Cleaning Kit (32mm) Hose Extension Tube Turbo Tool Tubes Set
Karcher 6.362-922.0 O-Ring Seal For Extension Tube SC1, SC2, SC3, SC4, SC5
3 Pack 32mm Extension Tube Pipe Rod Set For Numatic Henry Vacuum Cleaner Hoovers
