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Thread started 01 Aug 2005 (Monday) 08:46
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3/8-16 to 1/4-20 adapter?

 
Scottes
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Aug 01, 2005 08:46 |  #1

I have a pano head which has only a 1/4-20 female on it and is therefore supposed to mount onto an existing tripod head. Since I have a leveling base I want to remove the normal tripod head and mount the pano head to the leveling base. Alas, the leveling base has a 3/8-16 male since it's supposed to go under a normal tripod head.

All in all the pano head simply has the wrong thread, in my opinion.

Does anyone know where I get a 3/8-16 to 1/4-20 adapter?


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SkipD
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Aug 01, 2005 09:00 |  #2

You won't find a simple adapter that will work in that situation. The problem is that you need to REDUCE the thread diameter. That can't be done with an in-line adapter without making it longer than the existing male 3/8" thread on the levelling base. It would need to have a female 3/8" thread and then a male 1/4" thread.

What you could do is get yourself suitably sized piece of aluminum plate, approximately 1/4" to 1/2" thick. Drill and tap adjacent holes for both thread sizes. Screw the plate onto the 3/8" male thread on the levelling base, making sure that none of the thread projects above the plate. Then, screw a piece of 1/4" threaded rod into the plate's 1/4" tapped hole and screw the pano head to that. You might want to use a little super glue to hold the 1/4" thread into the plate. The only shortcoming of this idea, if it makes any difference, is that the center line of the levelling base and the pano head would be out of alignment by the difference in location of the two holes in the aluminum plate.


Skip Douglas
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Scottes
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Aug 01, 2005 09:43 |  #3

Yeah, and that mis-alignment is why I had hoped to stay away from that process. But I might not have a choice, unless I want to tap the pano head for 3/8-16... I like that idea even less.
:-(


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SkipD
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Aug 01, 2005 11:13 |  #4

Since you have a levelling base, the perfect solution for you would be a Bogen/Manfrotto 3299 - a quick release adapter kit that has a 3/8" female thread in the base and 1/4" male thread on the removable QR plate. Not terribly expensive, either.

Is your levelling base the Bogen 3502? I have one of those, and just checked it out. The 3/8" threaded rod doesn't seem to be removable. At least I wasn't going to booger up the threads trying. If you could pull the threaded rod out, you could replace it with a dual-diameter male-male adapter and mount your pano head to that.

Tapping the pano head wouldn't be the worst thing in the world, depending on its construction. I surely would consider it, but then I have a shop full of tools including a miniature lathe and mill.


Skip Douglas
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Aug 01, 2005 15:28 |  #5

I'm checking out the 3299 right now - it may be what I need. Not too expensive, but more than a simple adapter. Then again the QR release might be worth it.

Yes, drilling and tapping the Pano wouldn't be too bad. I'll have to look at it again tonight. I'd have to drill the 1/4-20 to a larger hole and I'm a little worried here, since it looked a little funky. It's hard to explain, but I didn't trust it.

Thanks Skip!


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Aug 02, 2005 07:03 |  #6

Bogen/Manfrotto actually makes such an adapter, and less than $16. Cool.
http://www.adorama.com​/BG3054.html (external link)


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SkipD
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Aug 02, 2005 07:32 as a reply to  @ Scottes's post |  #7

Scottes wrote:
Bogen/Manfrotto actually makes such an adapter, and less than $16. Cool.
http://www.adorama.com​/BG3054.html (external link)

Cool. Looks like the diameter is adequate for what you want. Perfect for the levelling head application.


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3/8-16 to 1/4-20 adapter?
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