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[OM] 80/4.0 Macro resolving power?

Subject: [OM] 80/4.0 Macro resolving power?
From: Dawid Loubser <dawidl@xxxxxxxxxxx>
Date: Thu, 1 Oct 2009 08:51:35 +0200
Hi All,

Just for interests sake, does anybody know what the actual resolving  
power
of the 80/4.0 Macro is at the various apertures? I am hoping it's good  
enough to be
basically diffraction-limited, and by reputation it's possibly the  
finest 1:1
lens that covers a full 35mm frame in the world (the Ultra Micro  
nikkors are amazing,
there are models that are diffraction-limited at f/1.2 and even f/1.0,  
but almost none
of these exotic models do 1:1 or cover a 35mm frame, and some of them  
only do specialised
wavelengths of light (UV, etc).

I know the 80/4.0 is bloody good, but I would like to satisfy my  
boyish curiosity with
some technical information on just "how" good it is.

Anybody?

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