A solution to the cantilevering of heavy binoculars that are mounted on a photo-or video head is the fork mount. It is possible to fork-mount binoculars so that they rotate in altitude about their center of mass; indeed, several large binoculars have mounting bushes in the sides of the optical tubes for precisely this purpose.
The yoke needs to be offset so that the altitude fulcrum is not above the fork's azimuth axis if it is to enable the binoculars to reach the zenith. However, this offset, and the consequent cantilevering, is constant, so it can be allowed for in the design. If necessary, it can be compensated for by the use of a counterweight system. A fork mount does not eliminate the need to raise and lower the mount for observing at different elevations.
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