Felip B. Gonzلlez A simple part that expands the usability of my R1 Product: Ultimate R1/R10 Plastic Insert for Lens Ring Clamp (F6111) Posted By: Felip B. Gonzلlez - It was a nice surprise to find out that by replacing the insert ring from my R1 I could use it with different fisheye lenses. The support team at Nodal Ninja was very helpful and now, with a little investment I can use the same gear with my two favorite fisheyes.
Ultimate R1/R10 Plastic Insert for Lens Ring Clamp F6249V 
