Igor, its similar in concept to what I have but mine is probably 15 years old.

Kenneth Waller
http://www.pentaxphotogallery.com/kennethwaller

----- Original Message ----- From: "Igor PDML-StR" <pdml...@komkon.org>
Subject: Re: Adapters from other QR's to Arca Swiss?



Ken,

Is it this one?
https://www.kirkphoto.com/universal-quick-release-adapter-with-quick-release-clamp.html

Actually, this video clearly describes a few possible modes of attaching that block to the "other" QR plate (that long one seems to be RC5, - the one I was looking to adapt): https://vimeo.com/173042914 It becomes clear how the issue of twisting between the "original" QR plate and the Kirk block is addressed in a couple of different ways.
This PDF has the same information for those who don't like videos:
https://www.kirkphoto.com/index.php/amfile/file/download/file_id/126/


That's the solution I was looking for!
Thanks a lot, Ken!
And thank you, Paul and Larry for contributing some useful information!


Now, I am looking for the next possible step:
This Kirk piece is $100. I am wondering if there is a Chinese knock-off
at a lower price.
This type of clamp is 5 times cheaper:
https://www.amazon.com/Skeleton-Desmond-Lightweight-Adapter-Compatible/dp/B00EIQNBXA/
But I have doubts it would be possible to avoid the twist between this clamp and the RC5 plate.

Thanks,

Igor


 Ken Waller Tue, 11 Apr 2017 11:23:16 -0700 wrote:

I purchased it awhile back from Kirk.

Kenneth Waller
http://www.pentaxphotogallery.com/kennethwaller


----- Original Message ----- From: "Igor PDML-StR" <pdml...@komkon.org>

Subject: Re: Adapters from other QR's to Arca Swiss?



Ken,

Is that block commercially available or you made it yourself?
If it is sold somewhere, - would you mind pointing to it?

Thank you,

Igor


Ken Waller Tue, 11 Apr 2017 08:36:11 -0700 wrote:

Igor,

The block between the Bogen clamp and the A/S receiver fits snugly into a wide depression in the bottom of the Kirk A/S receiver thus no rotation as the block is retained in the Bogen clamp just like the Bogen plate.


The aluminum block has a trapizoidal cross section, about 1/2" high by approx 2" long and wide enough the be securely captured in the Bogen clamp.

HTH


-----Original Message-----
From: Igor PDML-StR <pdml...@komkon.org>
Subject: Re: Adapters from other QR's to Arca Swiss?


Ken,

Thank you for this suggestion.
I think that might be a reasonable solution for my needs.
So, basically, it is an Arca-Swiss clamp that can be bolted to
the desired Bogen/Manfrotto QR (RC5 in my case).
In you case you have an extra aluminum block, but I wonder if it can be avoided.

In the simplest case, that "bolting" can be done if that clamp has a 3/8" or 1/4" female thread in it, and, preferably, a whole for the pin in my case -- to avoid any extra rotation on the said screw.

Since there are A-S clamps that mount directly onto a monopod or heads, -
they obviously do have one of such holes.
So, the question now is: Is there a hole as well, - to avoid the rotation of this clamp on the RC5 plate?

I am looking at the clamps, e.g. from RRS:
http://www.reallyrightstuff.com/QR-clamps
One of the "mounting styles", with the threaded center hole is what I'd need. I don't think there would be a hole for the pin (I don't see it being mentioned). So, I wonder, how is such a clamp is secured against
rotation on a threaded stud?
Any ideas/suggestions?

Just in case, to help visualizing, RC5 plate looks like this:
https://www.bhphotovideo.com/c/product/1072985-REG/axler_qrp_501s_501_quick_release_plate.html
http://www.bogentripodparts.com/parts/images/3433Plate.jpg


Igor



Ken Waller Mon, 10 Apr 2017 20:55:24 -0700 wrote:

Igor, I have a Kirk adaptor that mounts an Arca Swiss receiver onto a Bogen plate for my 'mini gear head. It's simply an aluminum 'block that bolts to an Arca Swiss receiver that then is clipped onto the Bogen head like the Bogen plate.


Kenneth Waller
http://www.pentaxphotogallery.com/kennethwaller


----- Original Message ----- From: "Igor PDML-StR" <pdml...@komkon.org>

Subject: Adapters from other QR's to Arca Swiss?



I wonder if there are any "adapters" that would have the bottom as a QR plate for one of the Manfrotto heads, and on top would be a clamp accepting Arca Swiss plates?

I am particularly interested in RC5 but I am curious if these type of beasts exist at all.

Note, I am not looking for  "dual" plates. (I believe I've seen
such for RC2 + Arca Swiss...)

Igor


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