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FORUMS Canon Cameras, Lenses & Accessories Canon Accessories 
Thread started 12 Feb 2011 (Saturday) 19:22
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Acratech 1143 QR clamp thread size?

 
Skaperen
Member
232 posts
Joined Nov 2009
Location: Wheeling, WV, USA
     
Feb 12, 2011 19:22 |  #1

Anyone know what the thread mounting size is for the Acratech 1143 quick-release clamp?

http://www.bhphotovide​o.com …_Quick_Release_​Clamp.html (external link)


7D, 450D, 18-135/3.5-5.6, 18-55/3.5-5.6, 60/2.8 macro
Wish List: 5DsR, 16-35/2.8L,100/2.8L macro, 135/2L, LC-E6E

  
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klr.b
Goldmember
2,509 posts
Joined Jun 2009
Location: SoCal
     
Feb 12, 2011 22:19 |  #2

I believe they're all tapped to 3/8-16. If you need 1/4-20, it probably comes with a reducer.


gordon
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Skaperen
THREAD ­ STARTER
Member
232 posts
Joined Nov 2009
Location: Wheeling, WV, USA
     
Feb 12, 2011 22:26 |  #3

klr.b wrote in post #11831893 (external link)
I believe they're all tapped to 3/8-16. If you need 1/4-20, it probably comes with a reducer.

The reducer bushing is easy to get. In at least one other clamp, the bushing is included. I just want to avoid it if I can. I've been sorting out a number of clamps. This one lacked that info. There are some with 1/4-20.

http://www.bhphotovide​o.com …lease_with_Flip​_lock.html (external link)
http://www.bhphotovide​o.com …_Quick_Release_​Clamp.html (external link)


7D, 450D, 18-135/3.5-5.6, 18-55/3.5-5.6, 60/2.8 macro
Wish List: 5DsR, 16-35/2.8L,100/2.8L macro, 135/2L, LC-E6E

  
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Acratech 1143 QR clamp thread size?
FORUMS Canon Cameras, Lenses & Accessories Canon Accessories 
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