When a lens support bracket isn't supplied from the rental house, or it doesn't interface with the slots on the Longplate, the LensLift is a useful accessory to put into play.
Designed to support all lenses at least up to 6" in diameter, the LensLift supports from below AND holds the lens down gently from above.
In addition to interfacing with the Longplate, the LensLift will work with any 15mm rods system.