Archived posting to the Leica Users Group, 2001/02/06

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Subject: Re: [Leica] how can the 75 Lux focus go bad?
From: John Collier <jbcollier@home.com>
Date: Tue, 06 Feb 2001 14:51:01 -0700
 
http://www.silverlight.co.uk/resources/dof_calc.html

> From: "Austin Franklin" <austin@darkroom.com>
> 
>> Wide open and focused close, the depth of field of the 75/1.4
>> is between 6mm
>> to 8mm (just over a quarter inch).
> 
> What are you basing this number on?
>