Wimberley WH-200 Version II brand_Rokinon focusing and diaphragm action are

focusing and diaphragm action are good

Smooth geared adjustment

there are several aftermarket adapters that do that same thing

you could probably get away with a small medium format camera

8 is a wide-angle lens for the Contax G-series camera

Wimberley WH-200 Version II brand_Rokinon focusing and diaphragm action areThe Wimberley WH 200 Version II is a solid, professional gimbal head designed for long telephoto lenses: it'll hold up to 45kg, which should be enough for almost anything. In good condition, with some paint and finish wear. Locks are excellent, and movements are smooth. The integral clamp is Arca compatible; one plate is included. Heck of a head.