I'm trying to source an Arca-Swiss lens plate to mount the Sigma 150-500mm zoom lens to a Mongoose 3.5 head.
Could anyone tell me which lens plate will work. Wimberley specs out the P-50 lens plate for this lens but as the lens mounts sideways on the Mongoose I'm worried about the plate twisting on the foot.
I use the 50-500 lens (similar size/weight/design I believe) on a sidemount gimbal, single screw mount, and have yet to have the lens twist... not while shooting, hiking with the rig over my shoulder, has been a non-issue.