The rod clamp is designed originally for USB follow focus. Some friends found that the rod clamp is great for Canon tele lens support. some friends use it as application extender such as hand-hold grip / handle, shoulder countweight balance, USB follow focus, follow focus,magic arm, LED light, flash..
Now, anti-slip rubber padded on top, allow you mount your Panasonic Lumix DMC-GH1 on your DSLR rig.
or example: Upside down the clamp, add a handle with 1/4" threaded mount hole, you can get a single front handle rod clamp.
60mm Rods distances (center-center). Fits 15mm rod support film industry standard.
Now, V3 rotating thumb screw knobs are available!
Made of stainless steel and aluminium. Nice Chamfer, glass bead blasting and anodized blue finishing