[Leica] BIG new Leica

[John McMaster]

Talking from personal experience Mark?

john

-----Original Message-----
From: 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
>