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08-12-2017, 06:29 AM   #1
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Tripod Socket Size Pentax K5

Hello ... I am buying a ball-head for my tripod to accommodate my K5 but am unsure of the tripod socket size. None of the specs tell me this. I think it is a 1/4 X 20 but not sure. Can anyone answer this? And Thanks ..Ron

08-12-2017, 06:59 AM   #2
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Hi silentnight16. I think that the camera baseplate tripod socket must be a standard size going back decades; my K-3II socket is the same as the one on my 1957 AP! (At least I think: I'm in a small town in northern Spain currently so can't check.)

I also bought a ball-head for my tripod about a year ago which has a detachable socket-mounted Arca-Swiss footplate that lives on my K-3II. The issue that I did have was that the socket on the base of the ball head was too big for my Velbon tripod screw, so that I had to buy a socket adapter (for 79p!) - but then all was fine. If you have this problem, just make sure you buy the adapter without the flange otherwise it won't sit properly.
08-12-2017, 07:07 AM   #3
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It's the standard of every but some very large camera's
Tripod (photography) - Wikipedia
08-12-2017, 07:14 AM   #4
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Standard, whatever standard is. I bought 3 tripods without ever checking the size and they all work.

08-12-2017, 07:43 AM   #5
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It indeed is 1/4" 20 tpi. There's an international standard, ISO 1222:2010, that defines that size and the larger 3/8" 16 tpi for larger cameras.
08-12-2017, 08:46 AM   #6
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The 3/8 size also used to be standard for Europe, even for small cameras. From the 1930s into the 1950s Leica and Contax were 3/8 for Europe and 1/4 for the US. Of course, these were "bottom loaders" - so only the base plates were different. Canon also made some in 3/8 size for Europe markets.
08-12-2017, 10:27 AM   #7
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If you buy a 1/4" 20 tpi, you will be absolutely safe, since a 3/8" 16 tpi bushing can be used.You can find them for a couple of dollars - I just grabbed this since it was easy. There very well might be one included with the ballhead.

08-12-2017, 10:39 AM   #8
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Thank you all for your replies .. so off to Amazon/Ebay I go

11-15-2017, 02:23 PM   #9
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QuoteOriginally posted by aremmes Quote
It indeed is 1/4" 20 tpi. There's an international standard, ISO 1222:2010, that defines that size and the larger 3/8" 16 tpi for larger cameras.
Hi aremmes I think you've answered my question so I have a bid on a Tripod with a 3/4" screw size for my K5.
Many thanks,
Annie.

---------- Post added 11-15-17 at 02:33 PM ----------

QuoteOriginally posted by interested_observer Quote
If you buy a 1/4" 20 tpi, you will be absolutely safe, since a 3/8" 16 tpi bushing can be used.You can find them for a couple of dollars - I just grabbed this since it was easy. There very well might be one included with the ballhead.

That's great info about adaptor screws, thanks it all helps.
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