[Leica] Kolari modified Sony A7

[Paul Roark]

BTW, I took a good look at the Zeiss Loxia 35mm f/2.  It's the modified ZM
Biogon 35mm f/2.  My conclusion was that they did a very good job of making
a classic f/2, lacking aspherics and, ultimately, not being able to get the
extreme corners into what we'd expect or like.   So, there is still a whole
in the lineup for me, but at 2.8 and 1.4 they've nailed the compactness
race and ultimate 1.4 performance race.

What is missing in most of these tests are good Leica M comparisons to the
Sony line, in its various forms.

Paul
www.PaulRoark.com

On Wed, Dec 2, 2015 at 8:40 AM, Paul Roark <roark.paul at gmail.com> wrote:

> See http://www.fredmiranda.com/forum/topic/1392833/2#13289195 for the
> best collection of comparison tests I've seen.
>
> It seems that most M wides do dramatically better after conversion of the
> Sony a7r.  However, the apo 50 and longer lenses may not.  The OEM FE
> optics do better before conversion.  Sony and Zeiss, for their own lenses,
> include the cover glass thickness in the optical formula.
>
> From what I can see, Sony's strategy is not to have the best camera for M
> glass, but rather to have OEM glass that can beat the M glass.
>
> Paul
> www.PaulRoark.com
>
> On Wed, Dec 2, 2015 at 8:16 AM, John McMaster <john at mcmaster.fr> wrote:
>
>> Must have, thanks
>>
>> john
>>
>> -----Original Message-----
>>
>> John McMaster wrote:
>>
>> >
>> >Doesn't seem to say how the native lenses perform with the thinner
>> >glass.....
>> >
>>
>> Perhaps you missed this part:
>>
>> "Now, you might be wondering how this modification impacts performance
>> with
>> the original Sony lenses.  Luckily we have not seen a significant change
>> in
>> performance with lenses designed for the A7-series cameras and Roger at
>> LensRentals has independently run his own tests on a modified A7r and seen
>> the same thing.  You can see his results here. Lloyd Chambers of diglloyd
>> has also kindly ran a series of independent tests for us in a real world
>> setting, you can see his results here, with high resolution comparisons
>> available with a subscription."
>>
>>
>> Doug Herr
>> Birdman of Sacramento
>> http://www.wildlightphoto.com
>> http://doug-herr.fineartamerica.com
>>
>>
>>
>>
>> _______________________________________________
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>>
>
>