Amazon.com : Microscope Objective Lens RMS Thread to M42 x 0.75 Interface Adapter Ring : Electronics
XR704) XR15 G5 & G6 Radion Single Arm RMS Adapter Kit - Ecotech Marine - SaltwaterAquarium.com
Thorlabs - RMSA2 Adapter with External RMS Threads and Internal M25 x 0.75 Threads
Amazon.com : Lab Microscope Accessories Microscope Camera Adapters CS C-RMS/ RMS-C Adapter Ring C to RMS Mounting Thread Ring Adapter All Metal RMS to C-Mount for USB Camera Objective Lens (Size : Outer
Novoflex RMS Microscope Objective Lens to Leica Screw LEIMIK B&H
EcoTech Marine Radion G5 and G6 XR30 Single Arm RMS Adapter Kit - XR705 - TO USE ON G4 RMS TANK MOUNT