3DGUY,  with cad in the program you could have the nodal point bracket machined right out!

I don't recall nodal point in threads since being on 'rosity buy may have missed it.

At my work, well, in my work as a jeweler, cad is used by many to produce jewelry items. The jewelry is made and rendered in 3d/cad programs then the cad is used to mill or grow a wax item like the render.  We have the program at work but an early one and totally useless overall unless a couple of weeks are spent for special training. Newer progs are more user friendly but are very expensive, in the thousands of US dollars likely due to proprietary industry usage.

Just a thought.    I will likely build a bracket for my cam sometime but by hand and accurate measure.   Thanks for the info on focal node.

Peace to All.       TomDart.