Archived posting to the Leica Users Group, 1997/12/17

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Subject: Re: [Leica] Infinity focus tip
From: George Huczek <ghuczek@sk.sympatico.ca>
Date: Wed, 17 Dec 1997 20:48:55 -0600

At 01:49 PM 17/12/97 -0500, you wrote:
>Infinity is the thing that describes how positive integers there are in the
>world.
>
>Its a few other things too, but that gets too technical.
>
>As far as lenses go, I'm not sure what the optical definition is... :)

I think infinity refers to the distance at which light rays travelling
towards the lens are, for all intents and purposes, parallel.  Such rays
then converge at the focal point.  That's all that infinity means optically.

- -GH