RE: [Leica] The 3D Efect

["Kotsinadelis, Peter (Peter)" <peterk@lucent.com>]

Joe,

Of course lighting has much to do with it, but lighting aside, when you
calibrate the rangefinder in a camera such as the Leica M, you set a close
focus point, distant point, and intermediate point.  These attributes
provide a "tunneling effect" which are partially the reason Leica cameras
produce a "roundness" or 3-D effect. Much different from a SLR.  In a sense
when the rangefinder is set properly you gain a perspective of
depth-of-field.  

Peter K

> ----------
> From: 	Joe Stephenson[SMTP:joeleica@email.msn.com]
> Reply To: 	leica-users@mejac.palo-alto.ca.us
> Sent: 	Saturday, December 26, 1998 12:50 PM
> To: 	leica-users@mejac.palo-alto.ca.us
> Subject: 	Re: [Leica] The 3D Efect
> 
> 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
> ++++++++++++
> Dear Peter,
> Could you please explain further what you mean by "tunneling" and "three
> focusing points?" I sometimes observe a "3-D effect with Leica lenses
> (others, too), but I have always thought it had to do with lighting, and
> other details like DOF, contrast, etc.
> Thanks,
> Joe Stephenson
> 
>