Archived posting to the Leica Users Group, 2001/04/05

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Subject: Re: [Leica] Pinhole photos thru body cap?
From: John Collier <jbcollier@home.com>
Date: Thu, 05 Apr 2001 21:08:05 -0600
 
actual size of the aperture = focal length/nominal aperture = 30mm/1 = 30mm

> From: "Gwen & Jim Long" <jimlong@inwave.com>
> 
> What would the diameter of a 30mm focal length pinhole lens have to be if it
> were f=1?
> 
> 1/30 of a millimeter?  Anybody have a slide rule handy?
Replies: Reply from "Jason Hall" <JASON@jbhall.freeserve.co.uk> (Re: [Leica] Pinhole photos thru body cap?)