Archived posting to the Leica Users Group, 2006/11/27

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Subject: [Leica] 50mm rigid Summicron
From: len-1 at comcast.net (Leonard Taupier)
Date: Mon Nov 27 15:46:02 2006
References: <1be504db0611271511g296d628fp55076dd15d47edd0@mail.gmail.com> <9707D7F0-C684-4344-9504-C43FE99CE573@shaw.ca>

John,

That makes sense since the DR have to match the Bugeye extension  
tubes. As far as I know though the 1st rigid including the DR have  
the same lens formula.

Len


On Nov 27, 2006, at 6:37 PM, John Collier wrote:

> I can't remember all the details, or even my middle name half the  
> time, but the DR lenses are all the same exact focal length. The  
> rigid mount came in several variations to suit the slight focal  
> length variations of the production line optical units.
>
> John Collier
>
> On 27-Nov-06, at 4:11 PM, Phil Swango wrote:
>
>> Marc Small wrote:
>>> I believe that the Rigid 2/5cm Summicron is identical
>>> optically to the DR/NF version of that lens, the only difference  
>>> being in
>>> the lens mount, but I have never researched this and that could  
>>> be a third
>>> design based on a common pattern.
>>
>> That's what Erwin Puts says too.  I don't know if he's a reliable  
>> source or
>> not.  I've had both and couldn't see any difference.
>
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Replies: Reply from jbcollier at shaw.ca (John Collier) ([Leica] 50mm rigid Summicron)
In reply to: Message from pswango at att.net (Phil Swango) ([Leica] 50mm rigid Summicron)
Message from jbcollier at shaw.ca (John Collier) ([Leica] 50mm rigid Summicron)