Archived posting to the Leica Users Group, 1999/07/07

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Subject: Re: [Leica] Speaking of curved horizons...
From: Nathan Wajsman <>
Date: Wed, 07 Jul 1999 23:07:33 +0200


I do not believe it is lens distortion. The horizon is actually
straighter than it first appears (try putting a ruler against it). It
appears curved because there is less light at the edges, especially on
the left side of the picture.


Roger Beamon wrote:

> you LHSA types out there check Brian Bower's article in the
> current VIEWFINDER Volume 32, number 2 and tell me
> something. Is the lower picture on Pg. 18 showing the curvature
> of the earth that is apparent with a very wide lens from such a
> wide vantage point or is it a bit of expected barrel distortion from
> such a lens, OR, a combination of both?
> I guess my question is, how rectilinear is rectilinear? My guess is
> that the lens in that shot was set up pretty plumb.
> --
> Roger
>     There are wonderful photographs everywhere,
>       all of the time, The difficulty is in seeing them.
>              -- Dale Brown, N6QOL

- --
Nathan Wajsman
Overijse, Belgium
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