[Leica] Zeiss 35mm f/1.4 ZM Distagon rumor

[Paul Roark]

There is currently no M-mount 35mm that works well on the Sony a7r.  It's
more sensitive to ray angle than the Leica M's.  The new Zeiss 35mm f/2
"Loxia" (say what?) "Biogon" for the Sony E mount is similar to the ZM
version, but not the same.  See
http://www.zeiss.com/camera-lenses/en_de/camera_lenses/loxia/loxia235.html

I would expect Zeiss will coordinate the lines -- ZM and Sony E mount -- to
some extent.

Apparently the Leica advantage in terms of the ray angle impact on image
edge quality results, in part, from the thickness of the glass covering,
not just (or even?) the microlenses, per se.  The Sony cover glass is much
thicker.  (Why?)

I noticed Samsung recently had a press release on a process of theirs
("Isocell") that helps with edge smearing also.  It isolates the pixel
cells from each other more effectively, they say.   See
http://www.samsung.com/global/business/semiconductor/news-events/press-releases/detail?newsId=13041


It's interesting to think of each pixel as a separate optical system and
what is needed for rays coming into it at different angles to be equally
and effectively guided into the cell without any impact on adjacent cells
-- not a simple task.

It's also interesting to note that it's the cell phone market that has much
of the action.  The latest photo to be put on my mantle is a cell phone
print, and a very good one at that.  Those who criticize Leica for turning
to a cell phone CMOS source should note that cell phones are also up to a
pixel density that would translate into 100 MP for a full frame camera.  We
have a lot more "progress" coming.

Paul
www.PaulRoark.com


On Fri, Sep 5, 2014 at 1:55 PM, Sonny Carter <sonc.hegr at gmail.com> wrote:

> It is supposed to be an M mount, and thus would be usable on both; with an
> adapter on the A7r.
>
>
> On Fri, Sep 5, 2014 at 3:48 PM, Paul Roark <roark.paul at gmail.com> wrote:
>
> >
> >
> http://leicarumors.com/2014/09/04/a-new-zeiss-distagon-351-4-zm-lens-leica-m-mount-to-be-announced-for-photokina.aspx/
> >
> >
> > If true, this is interesting.  I hope they have designed this one to be
> > compatible with both the Leica M and Sony a7r.  I'll be more interested
> in
> > putting money into an optic that can serve both bodies than just one.
> >
> > Paul
> > www.PaulRoark.com
> >
> > _______________________________________________
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> >
>
>
>
> --
> Regards,
>
> Sonny
> http://sonc.com/look/
> Natchitoches, Louisiana
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