ML Archive: Re: [OM] Zuiko 200mm f/4

Subject:	Re: [OM] Zuiko 200mm f/4
From:	"nizora" <nizora@xxxxxxxxxxxxxxxx>
Date:	Sun, 23 Jun 2002 14:24:40 +1000

> > reason to use an aspherical element was to *reduce*
> > the number of elements
> > in a design.
> > 

Could any one help with the explanation of what aspherical element is.
Many thanks inadvance,
Rob
>.


> 
> 


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Re: [OM] Zuiko 200mm f/4