[Leica] Leica M lens MTFs

[Nathan Wajsman]

And then there those who don’t care about charts and just take pictures :-)

Cheers,
Nathan

Nathan Wajsman

Alicante, Spain
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YNWA













On 27 Oct 2014, at 01:03, John McMaster <john at mcmaster.co.nz> wrote:

> I think that they admitted that the 35mm f2.5 had an aspheric element but did not publicise it. They seem tardy with MTFs currently, there is not one for the 100mm S APO yet either.
> 
> john
> 
> -----Original Message-----
> 
> 
> Thanks, that's a good set of data sheets.
> 
> My reading of the various postings regarding the new Summarits suggests that the 35mm might actually have a new formula, with an aspherical element added, but we'll see.
> 
> On another forum someone had asked about the 75 2.5 I use with the Sony a7r.  I had a copy of the old PDF that I posted for him, but I could not find the official ones where I thought they used to be.
> 
> I wonder how Leica evaluates its sales into the non-Leica camera base.  The WATE and everything above 50 mm is better than anything else on the Sony (unless perhaps one has a porter to carry around the new huge Zeiss top end).
> 
> Paul
> www.PaulRoark.com
> 
> On Sun, Oct 26, 2014 at 1:09 PM, Henning Wulff <hjwulff at gmail.com> wrote:
> 
>> Forgot to mention: the 'new' f/2.4 Summarits are rumoured to be the 
>> same optically as the f/2.5's, but in new mounts. I haven't been able 
>> to verify that, but it makes sense as the 2 Summarits I tried were a 
>> bit fast for f/2.5's.
>> 
>> Henning
>> 
>> 
>> On 2014-10-26, at 11:31 AM, Paul Roark <roark.paul at gmail.com> wrote:
>> 
>>> That appears to be old downloads.  There is a new line or Summarits 
>>> -
>> f/2.4
>>> - such as this one:
>>> 
>>> 
>> http://en.leica-camera.com/Photography/Leica-M/M-Lenses/Summarit-M-75m
>> m-f-2.4
>>> 
>>> I'm curious what they've done, like design wise, and whether they 
>>> have published new MTFs.
>>> 
>>> Paul
>>> www.PaulRoark.com
>>> 
>>> On Sun, Oct 26, 2014 at 10:18 AM, Mark Rabiner 
>>> <mark at rabinergroup.com>
>>> wrote:
>>> 
>>>> 
>>>> 
>> http://leica-camera.pl/wp-content/downloads/Summarit-M_35_mm_Technical
>> _Data_
>>>> en.pdf
>>>> 
>>>> http://leica-camera.pl/wp-content/downloads/
>>>> 
>>>> 
>>>> On 10/26/14 12:25 PM, "Paul Roark" <roark.paul at gmail.com> wrote:
>>>> 
>>>>> Is there any source of the MTFs for the new Summarits?  Leica 
>>>>> seems to
>>>> have
>>>>> changed its web pages and eliminated the PDFs I usually found there.
>>>>> 
>>>>> Thanks,
>>>>> 
>>>>> Paul
>>>>> www.PaulRoark.com
>>>>> 
> 
> 
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