Notes:

1. The Zoom H4N is mounted on a custom rubber-padded 15mm rail bracket to minimize audio pickup of rig vibration. It can be used alone with its built-in stereo mics, or along with phantom-powered shotgun mics mounted in front of the rig.

2. The stereo shotgun mic bracket is removable and attached to the rig by a single large C-clamp. When the rig is mounted on a tripod, the shotgun mic bracket can be detached and mounted to a tripod leg, for recording a fixed audio field that does not pan along with the camera.

3. The hollow counter-weight box is packed with rolls of nickels, along with the Satechi 5200mAh battery that powers the Zoom H4N. An LED charge level indicator is visible on the top of the battery. The counter-weight can slide forward to balance the rig on a tripod.

4. The hood of the Ruige monitor is removable, as is the monitor itself. The camera is close enough to the operator that its viewfinder can be used as well.

5. The rail-mounted lens hood is removable and the short rail extension can accommodate a rail-mounted anamorphic adapter.

6. The rail-mounted Panasonic 4/3rds adapter allows me to independently swap out both lenses and camera bodies without disassembling the shoulder mount. The camera is attached to the rig solely via the M4/3 lens mount. The 4/3rds adapter is mounted on a quick release plate, and can be swapped out for a zoom lens with a built-in tripod mount.

7. I fashioned the custom rail mount on the Panasonic 4/3rds adapter out of a tripod collar mount made for a Canon telephoto lens, with a hard rubber gasket to apply pressure evenly around the circumference of the adapter. The tripod collar was just narrow enough to allow camera and lens to be independently mounted and detached.

8. On the GH2, the Panasonic 14-50mm f2.8-3.5 zoom features both auto-focus and OIS. This makes the rig suitable for pre-focused handheld shooting such as on-location interviews. The front lens barrel extends less than an inch when zoomed, short enough to work well with a fixed external lens hood.

9. The entire rig, with camera, monitor, mics, and counterweight, weighs about 15lbs.

I have a second compact follow-focus rig as well:

http://www.personal-view.com./talks/discussion/558/gh2-shoulder-mount-follow-focus-rig-gini-trusmt

The GH2/H4N rig is for A-cam master shots, which are usually continuous takes of an entire scene from a static perspective. I find a prefocused fast zoom ideal for this type of shooting. When shoulder mounted, I use OIS.

The GH1 Follow-Focus rig is for B-cam close-up shots, which are typically handheld and mobile. For this I use manual-focused Nikon-mount Tokina zooms and fast Rokinon primes.

Both rigs are build around the concept of using a rotating lens collar tripod mount as a custom 15mm rail mount for Panasonic Four Thirds and Nikon lens adapters. This makes both the lens and the camera independently interchangeable and conveniently accessible, since they're not pemanently bolted to the rig. I use Four Thirds lenses for auto-focus and OIS with the A-cam, and I selected and geared the Nikon-mount lenses specifically for use with the B-cam follow focus. Contrary to Lumix lenses, Nikon focus rings rotate in the opposite direction, making them ideal for use with the TrusMT Follow Focus unit.

Here's what the skeleton of the rig looks like with everything detached, except for the Four Thirds mount, which is on a quick-release plate. Notice the hole I drilled on the right side of the Four Thirds tripod mount, this provides access to the lens lock button. (I also removed the rectangular plastic collar around the button, to make the tripod collar fit properly around the adapter.) The rig itself weighs about 3kg.

@LPowell

Looks nice.

Few suggestions.
Beware of superclamps. They are badly suited for mounting to rods. They can slip accidently.

Also I suggest to get two 7" arms with 15mm clamps (we have topic on then, each $48 shipping) and mount mikes using them. Well be more secure, more easy to position mikes and you save weight also.