M12 to C-mount Adapter Ring f/ Monitor Interface M12x0.5 CCD Camera C-mount Lens | eBay
Adapter Astro Edition - T-Mount Telescopes to Fuji G-Mount f/ Astronomy – Fotodiox, Inc. USA
C-Mount Lens Mounts
Amazon.com : SVBONY 1.25 inches UV IR Cut Filter Telescope Optics Infra Red Filter CCD Camera with C Mount to 1.25 inches Video Camera Barrel Adapter : Electronics
Thorlabs - MVLCMC C-Mount Adapter for 6.5X and 12X Zoom Lens Extension Tubes
Standard C-Mount Male T-Mount Female Step-Up Adapter
Thorlabs - CML05 CS- to C-Mount Extension Adapter, 1.00"-32 Threaded, 5 mm Spacer
Thorlabs - SM1A9 Adapter with External C-Mount Threads and Internal SM1 Threads, 4.4 mm Spacer