Archived posting to the Leica Users Group, 1998/06/26

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Subject: Re: [Leica] Noctilux Depth-of-field
From: Eric Welch <>
Date: Fri, 26 Jun 1998 17:50:50 -0500

At 10:47 AM 6/26/98 -0500, you wrote:

>And I'm now curious about my other long-held, accepted-as-fact belief. If
>my SLR can focus the 85 just fine, could it perhaps focus a 50 f/1.0 --
>were such a lens available for it -- with more than twice the
>depth-of-field of the 85, as well as an M6 after all?

You're ignoring a basic principle of focusing that a longer lens is easier
to focus on an SLR than a rangefinder, but a normal lens is easier for
focus on a rangefinder than an SLR. What is true is not contradicting
common knowledge, but confirming it.
- -- 

Eric Welch
St. Joseph, MO

As far as I'm concerned, treachery will sometimes bring loyalty into question.