| This 4" tall injection-molded bracket connects 50mm to 80mm porro prism binoculars up to 6 lbs. in weight to a camera tripod for extended no-shake viewing. The top of the light-weight (2 oz.) bracket has a knob that threads into the 1/4"-20 thread hole that’s hidden beneath the decorative cap in the center hinge of most porro prism binoculars (unscrew the cap to be sure that the center post of your binocular has the threaded hole before ordering this product). The base has a 1/4"-20 thread hole that fits the 1/4"-20 thread attachment bolt on the top of every photo tripod’s pan head. When used for astronomical binocular observing, some people complain that this type of tripod adapter can give them a literal pain in the neck from crouching under the binocular with their head tilted back to look at the skies. We have found that a more comfortable way to use this adapter for astronomical observing is to lean back in a lawn chair or chaise lounge, let two of the tripod legs straddle your own, and tilt the tripod back to you, so that the far leg of the tripod leaves the ground. The tripod proper becomes a bipod. The hand that you use to hold the tripod effectively becomes the third leg of the tripod. This lets you lean forward and back to scan the skies, with a minimum amount of pain-inducing neck contortions. Also, to keep from being stabbed by the pan handle of the tripod, put the binoculars on the tripod backwards, so that the pan handle points away from you, under the objective lenses of the binocular. You can still reach the handle to control the side-to-side and up-and-down motion of the tripod pan head, but it can no longer poke you in the chest or throat.
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