@Bold, tito, nickgorey, nahua, richg101, quickhitrecord and everyone else in this thread; great work! Thanks for sharing so much info from all your work on this lens. I recently decided to dive into anamorphic shooting and this thread was invaluable.
My setup is typical:
GH5
Taking lens (Helios 44 58mm/Minolta 55mm/Fujinon 55mm)
B&H with Redstan clamp
Here's the setup, showing the lenses mounted on some rails; taking a cue from Bold (well, more than just one), I've used some telescope guide rails attached to a smallrig clamp. But I think I prefer using the standard smallrig V-s