Archived posting to the Leica Users Group, 2001/02/08

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Subject: RE: [Leica] Re: DOF, thanks Austin
From: "Austin Franklin" <>
Date: Thu, 8 Feb 2001 18:20:06 -0500

> It is, moreover, TOTALLY standardized.

Ah, that's why every resource cited gives a completely different DOF given
the same criteria!

It just isn't standardized.  Take two lenses from different manufacturers,
or even different lenses from the same manufacturer with the same focal
length...and the DOF scale will be different.  Here is an example of two
35mm format lenses:

Leica 35/1.4 ASPH f16 is infinity to 3"
Zeiss/Contax 35/1.4 f16 is infinity to 4"

And that is just one example, that took no work to easily find, so don't
tell me this is totally standardized.  If it is, obviously, either Zeiss or
Leica doesn't pay attention to the supposed standard.

Replies: Reply from "B. D. Colen" <> (Re: [Leica] Re: DOF, thanks Austin)
Reply from "Henning J. Wulff" <> (RE: [Leica] Re: DOF, thanks Austin)