Archived posting to the Leica Users Group, 1997/08/12

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Subject: Re: 2 1/4 vs 35mm, the rest of the story
From: aglang@sprynet.com
Date: Tue, 12 Aug 1997 16:55:22 -0700

The MF DOF probably assumes a lesser degree of enlargement, so allows a greater 
COC...

On Tue, 12 Aug 1997, "BIRKEY, DUANE" <dbirkey@hcjb.org.ec> wrote:
>Whoops I forgot to compare the equivalents too:
>
>Nikon 20mm @f/22 about 1.2 ft to infinity, Mamiya 35C @f/22 about 1.7 
>ft to infinity
>Canon 50mm @ f/22 about 6 ft to infinity,  Mamiya 80C @ f/22 about 7 ft 
>to infinity.
>Canon 85mm @ f/22 15 ft to infinity, Mamiya 150 C @f/22 about 23 feet 
>to infinity. 
>
>I shoot a lot with the 85 in 35mm (or 150 in 120)  and these are the 
>types of figures I found in my practical shooting experience. 
>
>Duane Birkey
>HCJB World Radio
>Quito Ecuador
>
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