Archived posting to the Leica Users Group, 1998/02/01

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Subject: Re: [Leica] Summicron-M 50mm or Summilux-M 50mm?
From: Pascal <cyberdog@ibm.net>
Date: Sun, 1 Feb 98 18:13:52 +0100

On 24-01-1998 00:25 Erwin Puts wrote:

>On my site you can find a comparative analysis of these lenses.
>The Summicron is optically corrected to a higher degree. And aspecially the
>contrast of the Summilux at spatial frequencies of 30 lp/mm and below is a
>bit weak (not in the centre but in the outer zones). When using this lens
>at full aperture (1,4) and shooting at shutterspeeds around 1/60 or lower
>it is hardly possible to record these 30lp/mm. So in most practical
>situations you can not use the full optical potential of this lens and
>therefore not run up to its optical limits.
>Erwin
>
>
Huh?

Erwin, could you please explain this a bit? I must confess I am not a 
technical expert, so I do not fully understand what you are saying.

BTW: it was mainly your excellent site that got me over from Nikon to the 
Leica world.
:-)

Pascal


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