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[OM] Re: Figuring out depth of field with 4/3 adaptor

Subject: [OM] Re: Figuring out depth of field with 4/3 adaptor
From: Moose <olymoose@xxxxxxxxxxxxxxx>
Date: Mon, 28 Mar 2005 15:25:16 -0800
James Royall wrote:

>But how do I work out depth of field using the scale on the lens? Using 
>the 24mm (which becomes a 'standard' 48mm) on an OM at F8 gives an 
>indicated depth of field of just over a meter to infinity. Can I do 
>something simple, like looking at the DOF for F4 when used with a 4/3 
>sensor? Or do I have to take along my 50mm and see what DOF that would 
>give me on an OM at F8? Or am I going to have to have to take some 
>chalk, draw a huge 30 meter ruler on the street outside and work out my 
>own scale?
>  
>
I suspect the most practical way to start would be to compare the DOF 
tables for one of the E-1 lenses against the 35mm based DOF table for 
the 24mm (which you can find on the eSIF). Unfortunately, the 
instruction manual for the 14-54 lens on Oly's web site doesn't include 
an DOF tables.

Anybody know wher one can find DOF tables for E-1 lenses? Even if the 
focal lengths aren't exact matches, one could at least discover the CoLC 
they are using.

Moose


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