Great motor brackets for Preston FIZ unit.
Description form the Hill Products website:
This is what you've been asking for! The Uni-Clamp has all the functions you need. Mounts on all three sizes of iris rods, (15mm, 5/8", 19mm) "No Reducers needed." Can mount over the iris rod midpoint so you no longer have to remove the accessories or matte box for motor placement. The double D shaft can be swapped out for shorter or longer shafts. Comes standard with a 3 3/4" shaft length that will give you 4 3/4" overall length. Uni-Clamp is spring loaded - the jaws are self-centering.
Will sell them as a complete kit, including arm, rosette & D-Clamp for $210/each.
If you already own some PAM hill brackets and just want to upgrade. Will sell the Uni-Clamp arm only for $110/each.
Shipping not included.