Use the ACT Mounting Plate from Zacuto with the separately available ACT Baseplate, ACT Camera Plate, or any Arca-type plate to quickly mount and detach your camera as you switch between various supports or from tripod to handheld capture.
The mounting plate features 1/4"-20 and 3/8"-16 threads and a large thumbscrew that twists to slide and pulls to release your camera plate.