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About Wimberley BS-100

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.

Wimberley BS-100 Features

  • Used to convert the 3/8"-16 size female threading upon large telephoto lenses' mounting foot to accept 1/4"-20 threaded male screws

Wimberley BS-100 Specifications

Female Thread Size
Threaded Male Screws

Wimberley BS-100 Reviews

Reviewed by 1 customers


The best when used on a Giottos ballhead


from NY  -  Photo Enthusiast

I have used this bushing many times on Giottos ballhead to reduce the 3/8" hole to accept 1/4 bolts. The flange (lip) of most 3/8" to 1/4" bushing is just too thick. This Wemberley bushing has a smaller flange and fits perfectly.


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Questions about this item:

Shopper  Hello, i have a tripod head with a 1/4-20 thread stud, and i would like to fit my tripod head on it, but it has a 3/8 thread system.Can anyone tell me if a "stud-sleeve" exist to enlarge the tripod head stud to 3/8 ?, to allow my tripod head to correctly fit it? Thanks. Eric.
ANDREW M  Manfrotto 088 1/4 20 female to 3/8 male appears to be what you are looking for.
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