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Photographic Accessories Discussion on other Photography related Equipment. Tripods, Luggage and suchlike.

Tripod mount

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  #1  
Old 22-12-05, 14:54
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Default Tripod mount

Am I correct in thinking that the screw thread of the tripod mount is 1/4 BS WHITWORTH , cheers,Bert
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Old 22-12-05, 15:08
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Well 3/8 is more common on the better tripods but you do get 1/4 as well and a thread converter costs next to nothing.

cheers,
Andy
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Old 22-12-05, 15:13
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Hi Andy, I meant the thread on the camera,made a cock up, bert
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Old 22-12-05, 15:25
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I have not explained myself very well so I will start again,
Am I correct in thinking that the screw thread of the tripod mount, on Dslr and 35mm camera's is 1/4 BS WHITWORTH,its the thread type I am after cheers,Bert
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Old 22-12-05, 15:26
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The thread on the base of the camera is 1/4".

Harry
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Old 22-12-05, 15:29
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Hi Bert,
Yep 1/4 . I thought you mean't tripod legset to head.
oops, beaten to it.

cheers,
Andy
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Old 22-12-05, 15:44
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I know its a 1/4 inch diameter,what I am after is the thread type,when we used imperial measurements there was two types of thread ,one was whitworth, and I can't remember the other? Camera equipment never changed to millimeters which is a different thread also, ie 1/4 inch = 6.35, I am reasonably sure its whitworth, bert
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Old 22-12-05, 16:13
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Yes Whitworth is the standard for cameras
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Old 22-12-05, 20:20
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I fell over this one when trying to modify a tripod head for a scope.
I always believed the thread to be Whitworth and cursed as I did not have a die. When I later made a sighting device the previous experience forgotten and needing to support the head in a vice, I rummaged for a screw to fit, job done. Only later, as the origional project is ongoing, did I check out that screw and cursed again.

Seeing this brought it all back and I have just rechecked......... 1/4 x 20 UNC. the 3/8 thread is 3/8 x 16 UNC.

Whitworth, BSF, UNC, UNF. The difference is in the thead angle. Whitworth and BSF 55deg. UNC and UNF 60deg. Metric is also 60deg.

Don
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Old 22-12-05, 20:46
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Quote:
Originally Posted by Don Hoey
I fell over this one when trying to modify a tripod head for a scope.
I always believed the thread to be Whitworth and cursed as I did not have a die. When I later made a sighting device the previous experience forgotten and needing to support the head in a vice, I rummaged for a screw to fit, job done. Only later, as the origional project is ongoing, did I check out that screw and cursed again.

Seeing this brought it all back and I have just rechecked......... 1/4 x 20 UNC. the 3/8 thread is 3/8 x 16 UNC.

Whitworth, BSF, UNC, UNF. The difference is in the thead angle. Whitworth and BSF 55deg. UNC and UNF 60deg. Metric is also 60deg.

Don
Amazing, even googling got this wrong for me
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