Tripod thread foms, BSW or UNC or ?
A fairly simple question but seemingly not one with a readily found answer.
I have seen that the common thread in the camera base is 1/4" 20TPI but those specs from memory fit BSW or UNC, british standard whitworth and unified national course.
Ditto the larger head mounting thread, I think I have seen it is 3/8" 16TPI which again mayches BSW or UNC
BSW and UNC are from memory not interchangable as BSW has a 55deg angle which UNC has a 60deg angle.
Thanks, sorry if I missed it in my trawl of "tripod thread" threads.
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