R50C Sparrow Hawk Mounting Ring.
Now you can convert your 50mm finderscope to a spotting scope. This new cnc mounting ring fits over the main tube of our 50mm finderscopes and has a base with a 1/4-20 threaded hole. This allows you to mount your f50 finderscope to any camera tripod for field use. Merely unscrew the back from the finderscope, carefully slide it into the ring, rethread the back and you have converted your finderscope to a fully functional and lightweight spotting scope! Throw it in your suitcase or briefcase for immediate use! Beautiful polished black anodized finish. Please note: This ring does not work with the F60 finder below.