Sure. Just make sure you have compatible threads. I think all the Leitz/Leica heads will have 1/4" thread, and many will have either a reversible top (and often bottom) with a 3/8" screw at the other end, or a clever concentric pop-up sleeve for 3/8" compatibility. The clamp in Richard's link takes a 1/4" thread directly, but others are 3/8"-compatible. At worst you'd need one of those little screw thread conversion adapters. Note that if you don't have one already, the Leitz/Leica heads come in three different sizes. The longest one is designed to allow a Leica, which has the tripod socket at one end of the base plate, to be mounted in vertical orientation using the 'portrait slot' and still clear the legs of Leica's tabletop tripod. A shorter version might be better for some purposes unless you need the extra height. These heads are bulletproof and lock down very solidly, but have no friction control - it's all or nothing.
