Dino
Veteran
Used the Letus Ultimate, screwed onto its mount, on rails, and there is no possible wobble.
Barry,
I agree, the Letus Ultimate has worked well with the 170 once I added a second adapter support and the screw that goes through the support, into the adapter. It's important to make sure that screw is tight, especially with the force that a follow focus exerts laterally or just manual focus on the taking lens.
