Archived posting to the Leica Users Group, 2007/04/19

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Subject: [Leica] 50 Summilux..... Questions.....
From: hoppyman at bigpond.net.au (G Hopkinson)
Date: Thu Apr 19 16:16:43 2007
References: <018601c782cb$071a8920$154f9b60$@net>

Frank I have the asph. These wide open or nearly so, scanned from slides.
<http://gallery.leica-users.org/v/gh/a/F2/J6.jpg.html>
<http://gallery.leica-users.org/v/gh/a/F2/j1.jpg.html>

Based on specification, it has the best sharpness and contrast of the 1.4s, 
at 1.4. The MTFs tell the story. This is describing the
ideal test situation of course. Hand held, sharpness obviously is much more 
limited by technique and shutter speed. Contrast is also
greatly affected by resistance to flare and veiling as you know, especially 
in difficult lighting. In my experience, for this
situation it is much superior in this respect to the current Summicron wide 
open.
<http://gallery.leica-users.org/v/gh/a/Vic/Ned_at_Gaol.jpg.html>.
That is an unequal comparison, given the different situations and films as 
shown. However, keep in mind that the potential
aberrations that need to be corrected are much higher at 1.4 compared to 2. 
That makes the 1.4s performance even more admirable.

This lens is the one to have, in my opinion. Bokeh is a somewhat emotive 
consideration, on which you will have your own position. 

Cheers
Hoppy    


-----Original Message-----
From: lug-bounces+hoppyman=bigpond.net.au@leica-users.org 
[mailto:lug-bounces+hoppyman=bigpond.net.au@leica-users.org] On Behalf Of
Frank Filippone
Sent: Friday, 20 April 2007 07:38
To: 'Leica Users Group'
Subject: [Leica] 50 Summilux..... Questions.....

I have found a 50 Summilux pre ASPH that I am interested in.  Now, I already 
have a non-built in shade version, which I find sharp
and contrasty.

The lens I am offered appears a bit soft wide open.....   I find it closer 
to my 35 Summilux, which is not all that sharp.

For you with 50 Summilux, regardless of vintage or version, how sharp is 
your lens wide open?

PS.. I don't buy lenses of F1.4 to use stopped down, so comments about the 
stopped down performance go in one ear and out the
other... I want to know about wide open, F1.4.

Frank Filippone
red735i@earthlink.net 





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In reply to: Message from red735i at earthlink.net (Frank Filippone) ([Leica] 50 Summilux..... Questions.....)