Archived posting to the Leica Users Group, 1997/10/25

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Subject: Re: 50 nlux Vs 75 slux
From: Vondauster@aol.com
Date: Sat, 25 Oct 1997 10:58:06 -0400 (EDT)

In a message dated 97-10-25 09:56:13 EDT, you write:

<< >May I ask: If you don't use that lens at f 1.4 and seldom at f 2.0, where
is
 >the advantage compared e.g. to the 2.8/80 Planar? I mean, e.g. a twin-eye
 >Rollei would have been less expensive.

Dan Cardish replied:
 
 I own a Hasselblad with a 80/2.8 Planar.  I'm not sure if there is any
 similarity between this lens and the one on the Rollie, but my summilux
 definitely outperforms the Planar at 2.8.  And I DO occasionally use the
 lens at f2. >>

I have test shot the 1.4 75mm Summilux and also own a 2.8 Planar CF, and must
agree with Dan. The Summilux is superior at f2.8, still excellent at f2.0,
and usable when properly focused (ref. our old discussion on DOF versus M
rangefinder accuracy) at f1.4. I found the lens to be equivalent to the 90
Summicron at similar apertures, but not as sharp as the current 90mm
Elmarit-M throughout the range. Of course, it blows the doors off the Elmarit
at f2.0 and 1.4...

(I ended up buying the Elmarit-M and have been absolutely delighted with it)

Will von Dauster