Archived posting to the Leica Users Group, 2008/11/24

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Subject: [Leica] M8 question #2: Barcoding lenses
From: len-001 at verizon.net (Leonard Taupier)
Date: Mon Nov 24 06:44:40 2008
References: <1793298543.2301061227499154836.JavaMail.root@mail02.pantherlink.uwm.edu> <8CC00053-B96C-46C2-901F-28C0FBBA6FD0@verizon.net> <41987DA0722547C4A9DE9A728383FF8A@Joseph> <E8D80AF6-4534-42E8-B4D4-0A2B667A5197@verizon.net> <3565E85F-E4EE-4180-AE77-FF877FA0353E@btinternet.com>

Thanks, Frank. I use the 35mm Jupiter-12 which extends quite far into  
the M8 and fairly close to the sensor. I get pretty good central  
sharpness but the edges aren't too good. Also It appears that the  
deeply recessed rear element partly obstructs the meter sensor as all  
the photos are underexposed between 1 and 2 stops.

Len


On Nov 24, 2008, at 9:25 AM, Frank Dernie wrote:

> I have not tried my 21mm SA on my M8 since it is one of the lenses  
> on the list that won't work with the M8. Whether this is because it  
> causes an internal clash or blocks off the meter cell I do not  
> know. OTOH it has an exit pupil extremely close to the image plane  
> so will be -much- more susceptible to the acute angle effects than  
> other lenses, and the correction for the 21mm Elmarit, whether  
> normal or asph, is unlikely to be correct. FWIW.
> Frank
>
> On 24 Nov, 2008, at 14:02, Leonard Taupier wrote:
>
>> Hello Joseph,
>>
>> I don't have the 21mm SA lens but if I did this is what I would do.
>>
>> First make sure the 21mm SA lens will not interfere with the M8.
>>
>> In the M8 the 21mm Elmarit brings up the 28/90 mm frame lines. I  
>> would order one of these LTM to M adapters from John Milich which  
>> are machined woth slots to be coded. Leica has released two codes  
>> for the 21mm, Asph and non Asph. I would try and find out which of  
>> these two lenses more closely matches the vignetting properties of  
>> the 21mm SA and code my new adapter that way. The 21mm SA uses  
>> either a 48mm filter or a series VII filter. B+W makes a 48mm UV/ 
>> IR filter and Leica has announced they will have a Ser VII. Most  
>> likely the M8 will do a fair job of correcting the vignetting and  
>> cyan creep but if it's close what little correction is needed  
>> should be able to be corrected by PS.
>>
>> You will need to use an external 28mm viewfinder for proper  
>> framing with the M8. Or you can use the full view of the M8 finder  
>> which is slightly wider then when using a 24mm lens.
>>
>> If anyone has done this or uses the 21mm SA on the M8 please let  
>> us know how it works out. Henning?
>>
>> Len
>>
>>
>> On Nov 24, 2008, at 3:44 AM, Joseph Low wrote:
>>
>>> What about the SA 21/3.4 on the M8 ?
>>>
>>> Joseph
>>>
>>> -----Original Message-----
>>> From: lug-bounces+joelct=singnet.com.sg@leica-users.org
>>> [mailto:lug-bounces+joelct=singnet.com.sg@leica-users.org] On  
>>> Behalf Of
>>> Leonard Taupier
>>> Sent: Monday, 24 November, 2008 1:40 PM
>>> To: Leica Users Group
>>> Subject: Re: [Leica] M8 question #2: Barcoding lenses
>>>
>>> Alan,
>>>
>>> I use many Leica LTM lenses on my M8 going back to those made in the
>>> 30's. However none are wider then 35mm so I don't worry about  
>>> coding.
>>> When used on the M8 I do use a UV/IR filter. Most of the very old
>>> lenses use an A36 push on filter. I have a Leitz push on A36 adapter
>>> that uses the special Summitar filter. I made a special Summitar
>>> filter that uses the filter glass from a 39mm UV/IR filter  
>>> mounted in
>>> an old Summitar filter frame. Other then that special case there are
>>> UV/IR filters available from B+W or Heliopan for all sizes. I only
>>> have two lenses that are not made by Leica, a 35mm Jupiter 12 and a
>>> Konica 50mm. They both take a 40.5 mm filter which I have a Heliopan
>>> UV/IR for.  The 50mm f1.5 Summarit and Xenon use a 41mm filter. For
>>> those two I use a 41-> 46 step up ring and a 46mm filter.
>>>
>>> Len
>>>
>>>
>>> On Nov 23, 2008, at 10:59 PM, Alan Magayne-Roshak wrote:
>>>
>>>>> Subject: Re: [Leica] M8 question #2: Barcoding lenses
>>>> ___________________________________________________
>>>> This discussion makes me wonder: are any of you M8 owners
>>>> using older, non-Leitz lenses on it?  If I were ever able to afford
>>>> an M8, I would need to use my LTM Nikkor and Canon lenses
>>>> as well as my 1960's era Leitz glass on it.  I couldn't get a body
>>>> AND new lenses.
>>>>
>>>> Alan
>>>>
>>>> Alan Magayne-Roshak, Senior Photographer
>>>> UPAA POY 1978
>>>> University Information Technology Services
>>>> University of Wisconsin-Milwaukee
>>>> http://gallery.leica-users.org/v/Alan+Magayne-Roshak/
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>> _______________________________________________
>>>> 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
>>>
>>>
>>>
>>> _______________________________________________
>>> 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
>
>
> _______________________________________________
> Leica Users Group.
> See http://leica-users.org/mailman/listinfo/lug for more information


In reply to: Message from amr3 at uwm.edu (Alan Magayne-Roshak) ([Leica] M8 question #2: Barcoding lenses)
Message from len-001 at verizon.net (Leonard Taupier) ([Leica] M8 question #2: Barcoding lenses)
Message from joelct at singnet.com.sg (Joseph Low) ([Leica] M8 question #2: Barcoding lenses)
Message from len-001 at verizon.net (Leonard Taupier) ([Leica] M8 question #2: Barcoding lenses)
Message from Frank.Dernie at btinternet.com (Frank Dernie) ([Leica] M8 question #2: Barcoding lenses)