Archived posting to the Leica Users Group, 1998/12/26

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Subject: RE: [Leica] The 3D Efect
From: "Kotsinadelis, Peter (Peter)" <peterk@lucent.com>
Date: Sat, 26 Dec 1998 12:16:24 -0800

	George, 

	What you say it partially true.  The fact is Rangefinder use 3
focusing points and create what is called "tunneling." You set the focusing
points to achieve a perspective of an image when in focus.  The older
M-lenses where also designed with this in mind.  Some refer to it as a "3-D
effect" others refer to it as "rounding."  Call it what you like, but it is
the effect of the Rangefinder versus an SLR.

	Peter K

> George Huczek wrote:
>  
>  At 12:00 PM 22/12/98 +0000, John wrote:
> One thing I really like about the Leica lenses is their ability to
> render the in-focus subjects nearly 3d in its differentiation from
> the background.  I don't know if this is true with Nikkors.
> 
> I've heard this so many times that I'm not sure anymore if this is a
> LUG myth or if there is some truth to it. Older SM Leica lenses may 
> have been designed optically to bring this about intentionally, but
> is there any truth to this for newer lenses, or is it just part of
> the Leica mystique?
>