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

[Richard Man]

I think some people still want to use their M lens on a non-M9/M240/MM
body, whether it's for the AF, small size, less costly or whatever reasons.
Not me of course.

On Sun, Sep 7, 2014 at 7:21 PM, Steve Barbour <steve.barbour at gmail.com>
wrote:

>
>
> Sent from my iPhone
> Steve Barbour
>
> On Sep 7, 2014, at 7:15 PM, Frank Filippone <red735i at verizon.net> wrote:
>
> I am surprised no one suggested the obvious.
>
> Discussed here months ago...
>
>
> If you want to use Leica glass on your Sony A7, use R glass. They will not
> have the same set of problems WA M glass have
>  And they cost less. A lot less.
> And you do not need to count cams
>
>
> Frank Filippone
> Red735i at verizon.net
>
> On Sep 6, 2014, at 8:57 PM, Frank Dernie <frank.dernie at btinternet.com>
> wrote:
>
> I think Leica have come up with an offset for the microlenses which is a
> reasonable compromise for the range of exit pupil-to-sensor distances for
> the majority of Leica lenses. Some have the exit pupil even too close for
> this offset and are not recommended but work, obviously, but sub-optimally.
> Sony seem to assume the use of lenses designed for SLRs where the exit
> pupil to sensor distance, even of WA lenses, is considerable. It would seem
> they have made no provision for oblique rays round the periphery, or very
> little. This will probably be OK for most SLR lenses, but can never be
> optimum for rangefinder optimised WA lenses. I don't believe it will be
> technically feasible to design a single lens which will be optimum for both
> Leica and Sony cameras.
> Frank D.
>
> > On 5 Sep, 2014, at 22:56, Paul Roark <roark.paul at gmail.com> wrote:
> >
> > 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
> >>>
> >>> _______________________________________________
> >>> Leica Users Group.
> >>> See http://leica-users.org/mailman/listinfo/lug for more information
> >>
> >>
> >>
> >> --
> >> Regards,
> >>
> >> Sonny
> >> http://sonc.com/look/
> >> Natchitoches, Louisiana
> >> 1714
> >> Oldest Permanent Settlement in the Louisiana Purchase
> >>
> >> USA
> >>
> >> _______________________________________________
> >> 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
>
>
> _______________________________________________
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>
> _______________________________________________
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>
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