Archived posting to the Leica Users Group, 2012/02/13

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Subject: [Leica] Freeing up a very stiff polarizing filter?
From: vick.ko at (Vick Ko)
Date: Mon, 13 Feb 2012 12:56:05 -0500
References: <>

I'm guessing some debris got into it.

My first reaction would be to put a drop of naptha into the ring and see 
if that frees it up.

I'd have to see the mechanism to see if it got dented, or whether it has 
a retaining ring that has become overly tight.


On 2/13/2012 12:52 PM, Adam Bridge wrote:
> I have a 60mm circular polarizing filter from B&W that has become VERY 
> stiff - as in rotating the polarizing component takes a whole lot of 
> torque.
> Is there a recommended method for freeing up something like this? Is it 
> repairable?
> Thanks for sharing any thoughts.
> Adam
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In reply to: Message from abridge at (Adam Bridge) ([Leica] Freeing up a very stiff polarizing filter?)