Archived posting to the Leica Users Group, 2007/06/23

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Subject: [Leica] 'cron 50mm DR on M8
From: kididdoc at cox.net (Steve Barbour)
Date: Sat Jun 23 12:36:26 2007
References: <5.1.0.14.2.20070623000603.00bdbb40@mail.2alpha.com> <B93CAC88-A478-4FC6-9575-C95ACA46B9C3@btinternet.com> <AA23CB5C-1D58-4A6A-AC3E-F207B8F1AC87@cox.net> <8FD3092E-2050-4AE2-BD48-5765208481B7@btinternet.com> <02165062-CB1F-4BB3-BEB9-8BE70067226E@cox.net> <D4F300C1-640A-49AC-9966-B5FAB7B2EF1E@comcast.net>

On Jun 23, 2007, at 12:26 PM, Leonard Taupier wrote:

> Steve,
>
> The experts say the DR and the Rigid made at the same time ( 1956 -  
> 1968 ) are the same lens in formula and performance.


so I have one further question and we can wrap this up....

are they in fact the same optically as the current !!  summicron  
50/2  and if not, how are they different...


and yes I have read Puts and Gandy, and each time they seem more  
confusing, Steve


>
> Len
>
>
> On Jun 23, 2007, at 3:20 PM, Steve Barbour wrote:
>
>> sorry Frank...
>>
>>
>> this discussion is getting a little too deep for me...  :-)
>>
>>
>> is the cron 50 DR identical to the old rigid cron 50... of that  
>> era...
>>
>>
>> or is it identical to the cron 50 which is available today  ?...
>>
>>
>> (as people say that the two are different from one another)
>>
>>
>>
>> thanks, Steve
>>
>>
>> On Jun 23, 2007, at 12:11 PM, Frank Dernie wrote:
>>
>>> I mean contemporary with the one you own.
>>> Frank
>>>
>>> On 23 Jun, 2007, at 13:49, Steve Barbour wrote:
>>>
>>>>
>>>> On Jun 23, 2007, at 12:49 AM, Frank Dernie wrote:
>>>>
>>>>> The contemporary
>>>>
>>>>
>>>> thanks Frank... do you mean the contemporary from then or  
>>>> now....  ?
>>>>
>>>>
>>>> Steve
>>>>
>>>>
>>>>> rigid Summicron is identical to the DR, apart from the close  
>>>>> focus arrangement. If you like the look so much why not get one  
>>>>> of those as well?
>>>>> Frank
>>>>>
>>>>> On 23 Jun, 2007, at 08:29, Peter Klein wrote:
>>>>>
>>>>>> Steve:  That was me.  I had the idea of getting a cheap Rigid  
>>>>>> Summicron with bad glass and the correct focal length marked  
>>>>>> inside.  The DR and Rigid lens heads unscrew from the mounts,  
>>>>>> so I thought I could put my DR lens head in the rigid mount  
>>>>>> for the M8, and still have the close range on film.  I asked  
>>>>>> DAG about it, and he said that the mounts were different and  
>>>>>> it wouldn't work.  But he also said that he could cut off the  
>>>>>> close focus part of the cam, and then it would work in the  
>>>>>> normal range on the M8.
>>>>>>
>>>>>> The unmodified DR does work in close-focus range on the M8.  I  
>>>>>> know for sure, because I've tried it. When it's set in the  
>>>>>> normal range, the close-focus half of the cam sticks out too  
>>>>>> far, and it hits something inside the body when you try to  
>>>>>> mount it.  I have read about this, and I have decided to  
>>>>>> believe it and not try it myself.  :-)
>>>>>>
>>>>>> I'm still thinking about whether to have DAG do the  
>>>>>> "operation."  It will depend on how much I like the 67mm  
>>>>>> equivalent length the 50mm turns into on the M8.  And whether  
>>>>>> I want to desecrate a sacred object.   Funny that I feel this  
>>>>>> way--I've used the close range all of twice since I got the  
>>>>>> lens.  But another DR was my first Leica lens, way back in  
>>>>>> 1970.  I really love how the DR draws, how it's made, how it  
>>>>>> feels.  And it's a Wetzlar product from the Golden Age.  So  
>>>>>> I'm reluctant to give the lens a "vasectomy" unless I'd really  
>>>>>> use it a lot on the M8.
>>>>>>
>>>>>> Decision postponed while I experiment with my other 50s.
>>>>>>
>>>>>> --Peter
>>>>>>
>>>>>> At 02:29 PM 6/21/2007 -0700, Steve Barbour wrote:
>>>>>>>  recall hearing that the cron 50mm DR can be modified,
>>>>>>> so that it can be used on the M8 body...
>>>>>>> maybe that was reported here...
>>>>>>> if someone can substantiate this, and give me details, I'd  
>>>>>>> appreciate
>>>>>>> it...
>>>>>>>
>>>>>>> thanks, Steve
>>>>>>
>>>>>>
>>>>>> _______________________________________________
>>>>>> Leica Users Group.
>>>>>> See http://leica-users.org/mailman/listinfo/lug for more  
>>>>>> information
>>>>>
>>>>>
>>>>> _______________________________________________
>>>>> Leica Users Group.
>>>>> See http://leica-users.org/mailman/listinfo/lug for more  
>>>>> information
>>>>
>>>>
>>>> _______________________________________________
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>>>> information
>>>
>>>
>>> _______________________________________________
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>>
>>
>> _______________________________________________
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>
>
> _______________________________________________
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Replies: Reply from don.dory at gmail.com (Don Dory) ([Leica] 'cron 50mm DR on M8)
Reply from len-1 at comcast.net (Leonard Taupier) ([Leica] 'cron 50mm DR on M8)
In reply to: Message from pklein at 2alpha.net (Peter Klein) ([Leica] 'cron 50mm DR on M8)
Message from Frank.Dernie at btinternet.com (Frank Dernie) ([Leica] 'cron 50mm DR on M8)
Message from kididdoc at cox.net (Steve Barbour) ([Leica] 'cron 50mm DR on M8)
Message from Frank.Dernie at btinternet.com (Frank Dernie) ([Leica] 'cron 50mm DR on M8)
Message from kididdoc at cox.net (Steve Barbour) ([Leica] 'cron 50mm DR on M8)
Message from len-1 at comcast.net (Leonard Taupier) ([Leica] 'cron 50mm DR on M8)