The most commonly used binocular mount is the photo tripod and L-bracket. Most modern binoculars in the aperture range of 40 to 70 mm have, in the distal end of the center-post hinge, a bush (threaded tripod adapter) for an L-bracket. Porro prism binoculars in the aperture range of 80 to 100 mm may either have a bush for
Figure 6.6. Direct mounting bush.
an L-bracket or a box for direct mounting on a tripod plate. Those of greater aperture than 100 mm almost always have a direct-mounting bush (Figure 6.5).
Some older 50-mm binoculars also have direct-mounting bushes, usually on the right-hand prism housing (Figure 6.6). Some have suggested that this arrangement can cause the optical tubes to lose alignment with each other, but I have not found this to be the case. However, if you have this type of binocular, you do need to ensure that the tripod head allows it to be mounted in such a manner that your nose does not foul the mounting plate! A tripod bush like this offers no facility for tilting the binocular side to side. Some people deem this to be an advantage.
Brackets for mounting a binocular to a tripod come in four distinct categories: hinge clamp, universal L-bracket, roof prism L-bracket, and L-bracket for roof prism. (Figure 6.5). It is important to acquire the one that is specific to your needs.
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