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Vixen Porta II head - 3/8" bolt?

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#1 Thomas Karpf

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Posted 10 January 2013 - 10:57 AM

Will a Vixen Porta II head attach directly to a tripod with a 3/8" bolt? I already have a very solid tripod and don't really want/need another.

Thanks.

#2 Agatha

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Posted 10 January 2013 - 12:29 PM

Tom,

Yes, it should work. Depending on the top surface of your tripod, make sure that there is plenty of bolt threads that turn into the Porta base. Also, it is always a good thing to make sure all threads are clean of any metal debris, etc. I always like to put a hint of grease on clean threads also. It spins easier and pulls tighter easier and will even help protect threads. I like at least 4 full turns of a bolt into a mount head. It simply gives more holding power and less likely to strip the threads. And if you have a spare 3/8-16 bolt just by itself, do hand thread that into the Porta first just to make sure threads are good.

Best, Linda B.

#3 Thomas Karpf

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Posted 10 January 2013 - 12:52 PM

Linda,

Excellent. Thank you. Spending an additional $80 for a tripod that I don't need seemed silly.

#4 DavidNealMinnick

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Posted 10 January 2013 - 10:14 PM

The Porta utilizes M10-1.5 threading.

#5 Agatha

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Posted 11 January 2013 - 04:28 AM

Tom,

Oh dear. :crazy: David is absolutely right. I just seemed to remember the number 3/8 being thrown around when the Porta II came out. I liked my original Porta so much I purchased another one (Porta II). I've never had it on a different tripod. So, just now at 3:30 in the morning :), I went and removed the head and checked the threads. Yes indeed. Definitely 10mm.

So, Tom, if possible, do change your tripod mount bolt to a 10mm X 1.5
A 3/8 will fit BUT it will be loose. The 10mm is correct and a proper fit.
Sorry for the confusion.

Best, Linda B.

#6 Agatha

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Posted 11 January 2013 - 04:38 AM

David,

Thank you for making the correction. I'm usually very particular with bolt threads, etc. I just went by what I remember hearing.
I still am surprised that the Tak Teegul uses a 3/8. At least, that is how it is described. A good reason to always check. :)

Thanks again.

Best, Linda B.

#7 Thomas Karpf

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Posted 11 January 2013 - 07:24 AM

David and Linda,

Thanks for the information.






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