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Wimberley BS-100 3/8"-16 to 1/4"-20 Brass Reducer Bushing

The Wimberley BS-100 Brass Reducer Bushing screws into the female threading upon the tripod collars of some larger telephoto lenses, essentially converting the hole to act like a 1/4"-20 threaded socket. Wimberley quick release plates use 1/4"-20 screws, not the larger 3/8"-16 size.