Well it works. Takes about $400 worth of stuff and a handful of hours to build, but it works.
Footage to come. And these lenses breathe quite a bit, as you would guess.
Had it over at ARRI/CSC in New Jersey on Wednesday for a camera checkout, there were fitment issues when we tried it on an ARRICAM ST but it works fine for Epic or One.
Just thought I would share and answer any questions if anyone had any.