Hitch Hiker Optical Mount
Lightweight Balanced Motion Tripod Head
Balanced rotation about the altitude (elevation) axis allows the Hitch Hiker to follow up and down motions without fighting gravity and to remain aimed on target without clamping. To accomplish this feat, the Hitch Hiker provides for shifting the payload up/down as well as fore/aft. The following diagrams explain. For simplicity, let's assume that the center of the rotating mass coincides with the center of the heavy stainless steel weight. We will ignore the masses of the saddle, payload platform, and guide-handle -- all of which also contribute slightly to the rotating mass. But the visualization is simpler if we just pretend that the center of the weight marks the center of the rotating mass.
The Hitch Hiker's camera rotation device was designed so that a typical DSLR camera can be rotated from landscape to portrait mode without disturbing the two-axis balancing of the load. Balance is also closely maintained for mirrorless cameras. This remarkable property is demonstrated in the following video. Note the smooth, low-resistance motions of the Hitch Hiker -- both before and after camera rotation. And note that the camera stays aimed without any clamping. And also note that the camera can be aimed straight-up and straight-down.