Archived posting to the Leica Users Group, 2014/12/27

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Subject: [Leica] I figured out how to adapt any LTM 50mm into a dual range lens - cheap & fast
From: henningw at (Henning Wulff)
Date: Sat, 27 Dec 2014 11:42:18 -0800
References: <>



On 2014-12-26, at 9:09 AM, kyle cassidy on the LUG <leicaslacker at> wrote:

> Obviously, we need to market a line of "Dual Range LUG Shims" which will 
> all be made from pennies that came from Dr. Ted?s pocket and have been 
> painted red and engraved.
> I imagine this to be a $250 closeup system.
> It will need a name though that ends in OOKY?..
> Frank Filippone said:
>> Raises questions about the old saying... a penny for your thoughts.....
>> Simply, a brilliant idea.
>> Can you imagine what Leica would charge for that penny if it had a red dot
>> on it?
>> Frank Filippone
>> Red735i at
>>> I'd posted a while ago asking if anybody had any thoughts about filing 
>>> down
>>> the threads on a 50mm to allow the focus coupling to travel further on
>>> lenses that's close focus was limited to a meter.  Kicking the idea 
>>> around a
>>> little, I've come up with a modification which will work with any LTM 
>>> 50mm
>>> and doesn't require grinding or altering the lens. It allows close 
>>> focusing
>>> to about half a meter (haven't checked exactly) - I have before and after
>>> close focusing images plus instructions here:
>>> I'd been kicking around the idea of getting a voigtlander nokton 1.5 - 
>>> the
>>> LTM ones are cheap, like $400, but the new bayonet mount ones are like 
>>> $900
>>> and as far as I can tell, the only significant difference is that the
>>> bayonet mount ones close focus to .7 meters. 
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Henning Wulff
henningw at

In reply to: Message from leicaslacker at (kyle cassidy on the LUG) ([Leica] I figured out how to adapt any LTM 50mm into a dual range lens - cheap & fast)