[Leica] BIG new Leica

[mark at rabinergroup.com (Mark Rabiner)]

I think the Leica 21mm Super-Elmar-M f/ 3.4 ASPH Lens is better!


On 10/23/15 5:44 PM, "Frank Filippone" <red735i at verizon.net> wrote:

> The 21 and 24 SEM are similar to the 50 ASPH Lux (and the WATE!).  I can 
> pick
> out images from those lenses from others in my stable....
> 
> It may be that the optical characteristics of the most modern lenses are
> similar.... design tools?  Intentional design compromises?  Purely chance?
> 
> Frank Filippone
> Red735i at verizon.net
> 
> 
> -----Original Message-----
> From: LUG [mailto:lug-bounces+red735i=verizon.net at leica-users.org] On 
> Behalf
> Of John McMaster
> Sent: Friday, October 23, 2015 2:40 PM
> To: 'Leica Users Group'
> Subject: Re: [Leica] BIG new Leica
> 
> The 21mm SEM beats the Elmarit asph in all areas IMO. I would say that the 
> S
> range is Leica's still lens showcase range ;-)
> 
> john
> 
> -----Original Message-----
> 
> ?Yes, everything is a whole set of compromises.  I assume Leica and Zeiss 
> will
> both continue to make optics that also cater to those who value 
> compactness.
> The M line is Leica's current showcase of what it can do.  It may be that 
> the
> Loxia line for the Sony is representative of what Zeiss can do for that
> platform.
> 
> Since wide angle optics are the main area of my concern regarding the Sony
> line, I was curious just how much of a penalty that platform will pay.  To
> show this, I made a Tiff file with a cutout of the Leica v. Zeiss Loxia 
> 21mm
> f/2.8 entries into this competition shown on different layers.  The images 
> are
> adjusted to equalize size and distance from the sensor/film.
> Some might find looking at the two similar optics interesting.  Download 
> the
> Tiff from http://www.paulroark.com/Loxia-v-Leica-21-f28.tif
> 
> As to relative sharpness, all we have are MTF curves that are not 
> necessarily
> comparable.  If they are to be believed, the Zeiss wins by a hair.  My
> experience is that Leica is more conservative in these, and in
> the real world Leica might well win by a hair.   The main and more
> objective measure of performance that could be important is that, 
> consistent
> with the performances we see in other wide angle lenses, the more 
> retrofocus
> optic has less vignetting. Zeiss is claiming light falloff at f/2.8 that is
> equal to the Leica at f/8.
> 
> Paul
> www.PaulRoark.com
> 
> ?
> 
> 
> 
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> 
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-- 
Mark William Rabiner
Photographer
http://gallery.leica-users.org/v/lugalrabs/