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09/03/2005 12:53:37 PM · #1 |
I'm looking to buy a tripod. The one i have became obsolote when i bought my 300D. It's just not strong enough. So. I decided to go with a ball head. I was wondering if tripod heads have some sort of a universal screw.
The old ball head i have has a female screw end, and it's roughly 10mm. Is this a standard size for them? I couldn't find anything on the internet regarding this matter. |
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09/03/2005 12:58:13 PM · #2 |
There seems to be just two sizes. My Giottos MT8180 has two...
Head Mount Thread Size:
Dual 1/4-20" & 3/8"
I have a Bogen ballhead and I tried it on my Bogen monopod thinking it would work but it doesn't. The ballhead has a 3/8" mount while the ballhead has the 1/4" similar to your camera mount on your 300D.
Hope this helps. |
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09/03/2005 01:04:21 PM · #3 |
Originally posted by rikki11:
There seems to be just two sizes. My Giottos MT8180 has two...
Head Mount Thread Size:
Dual 1/4-20" & 3/8"
I have a Bogen ballhead and I tried it on my Bogen monopod thinking it would work but it doesn't. The ballhead has a 3/8" mount while the ballhead has the 1/4" similar to your camera mount on your 300D.
Hope this helps. |
They make threaded adapter inserts. B&H has them.
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09/03/2005 01:09:31 PM · #4 |
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09/03/2005 01:10:41 PM · #5 |
Originally posted by Uusilehto:
I'm looking to buy a tripod. The one i have became obsolote when i bought my 300D. It's just not strong enough. So. I decided to go with a ball head. I was wondering if tripod heads have some sort of a universal screw.
The old ball head i have has a female screw end, and it's roughly 10mm. Is this a standard size for them? I couldn't find anything on the internet regarding this matter. |
I have just had this problem having been given a tripod with the head screw missing and have made a new one. The thread is 1/4 inch Whitworth which was a common screw form and size in the UK before the engineering industry converted to metric. |
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09/03/2005 01:16:05 PM · #6 |
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09/03/2005 03:03:17 PM · #7 |
Originally posted by bicray:
I have just had this problem having been given a tripod with the head screw missing and have made a new one. The thread is 1/4 inch Whitworth which was a common screw form and size in the UK before the engineering industry converted to metric. |
The thread form used on the tripod screw is UNC, not Whitworth. The Whitworth form has a 55° thread angle, while UNC is 60°. Whitworth has a rounded tip and root profile which is hard to manufacture, where UNC is flat. A male Whitworth bolt will probably fit a UNC thread of the same nominal diameter and pitch, but it's far from guaranteed.
There are two "standard" thread sizes used, 14-20 and 3/8-16. The former is the one used on cameras, the latteer is normally used to mount tripod heads to the tripod legs.
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09/03/2005 03:12:56 PM · #8 |
Originally posted by kirbic:
Originally posted by bicray:
I have just had this problem having been given a tripod with the head screw missing and have made a new one. The thread is 1/4 inch Whitworth which was a common screw form and size in the UK before the engineering industry converted to metric. |
The thread form used on the tripod screw is UNC, not Whitworth. The Whitworth form has a 55° thread angle, while UNC is 60°. Whitworth has a rounded tip and root profile which is hard to manufacture, where UNC is flat. A male Whitworth bolt will probably fit a UNC thread of the same nominal diameter and pitch, but it's far from guaranteed.
There are two "standard" thread sizes used, 14-20 and 3/8-16. The former is the one used on cameras, the latteer is normally used to mount tripod heads to the tripod legs. |
I have no doubt that kirbic is technically correct. However, I do not have UNC dies but I do have Whitworth and there is no gainsaying that 1/4 inch Whitworth fits as near perfectly as I could wish without any sign of binding or sloppiness. |
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