Archived posting to the Leica Users Group, 2004/06/03

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Subject: [Leica] FS: Summicron 50
From: jbcollier at shaw.ca (John Collier)
Date: Thu Jun 3 17:53:09 2004
References: <2867578BB7767E45B3C9E3CBA9C5A65F33B1D6@smskpexmbx3.mskcc.root.mskcc.org> <7B6747AE-B5AE-11D8-BD6F-0050E42E6E0B@shaw.ca> <001501c449c1$718b5910$7e04ee80@addp7pkjk5rgnw>

Eh!

Here we go again. I was counting up to my lens NOT listing them all. 
For posterity:

1 - 54/57 Collasible, seven elements in six groups
2 - 56/68 Rigid/DR, seven elements in six groups (new optical 
formulation)
3 - 69/79 six element in five groups
4 - 79/94 six elements in four groups (new optical formulation)
5 - 94&up six elements in four groups (same as above)

Mine is a third version which is obvious by its production date and 
focus mount design.

John Collier

On Jun 3, 2004, at 5:21 PM, A. Lal wrote:

> Thare have been at least 2, perhaps 3 versions of the 6 element 50 
> summicron.
> ----- Original Message -----
> From: "John Collier" <jbcollier@shaw.ca>
> To: "Leica Users Group" <lug@leica-users.org>
> Sent: Thursday, June 03, 2004 6:36 PM
> Subject: Re: [Leica] FS: Summicron 50
>
>
>> Well there was the collapsible, that's 1.
>> Then there was the rigid/DR, that's 2.
>> Then there is the six element, that's 3.
>>
>> What did I miss?
>>
>> John Collier
>>
>> On Jun 3, 2004, at 3:29 PM, Saganich, Christopher/Medical Physics 
>> wrote:
>>
>>> Sounds like you have a 4th version if it has six elements from 1973.
>>
>> _______________________________________________
>> 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
>


Replies: Reply from feli at creocollective.com (Feli di Giorgio) ([Leica] FA-1027 Developer)
Reply from feli at creocollective.com (Feli di Giorgio) ([Leica] FS: Summicron 50)
In reply to: Message from saganicc at MSKCC.ORG (Saganich, Christopher/Medical Physics) ([Leica] FS: Summicron 50)
Message from jbcollier at shaw.ca (John Collier) ([Leica] FS: Summicron 50)
Message from alal at duke.poly.edu (A. Lal) ([Leica] FS: Summicron 50)