Archived posting to the Leica Users Group, 2000/10/04

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Subject: [Leica] Re: OT: Arca Swiss B1 tension screw locked
From: Jim Brick <>
Date: Wed, 04 Oct 2000 07:13:25 -0700

This is indeed how Arca releases the lockup. I asked the Arca rep. You need
leverage to tighten it tighter than tight.

I believe Arca mod's the B1 (if it isn't the latest version) as I sent mine
in to be unlocked and that was ten years ago. It hasn't even hinted of
locking up since.


At 04:58 AM 10/4/00 -0700, Pete Su wrote:
>I've had Really Right Stuff catalogs before. Their scheme is to lock the large
>kob as tight as it can go and then force it a bit tighter. The claim is that
>this should unlock the small tension screw.
>I tried this but couldn't make it work.
>Oh well.
>--- Bill Christensen <> wrote:
>> Peter,
>> If my memory is correct, Really Right Stuff has a remedy if the large knob
>> locks up.  I don't know if it affects the small tension knob.
>> Also, the RRS plates are the best, IMHO.
>Do You Yahoo!?
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