Archived posting to the Leica Users Group, 2000/09/05

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Subject: Re: [Leica] New Canon Optical Element Design
From: Dennis Painter <dpainter@bigfoot.com>
Date: Tue, 05 Sep 2000 06:53:37 -0700
References: <001f01c01730$ac62d080$c73ffea9@ELNred735i>
 
Frank Filippone wrote:
> 
> Looks like a Fresnel lens to me ????
> 
> Frank Filippone
> red735i@earthlink.net

That is what I take it to be. It would appear that they are using it in
combination with conventional elements to get greater control over
bringing different wavelengths to the same focue point on film.
In reply to: Message from "Frank Filippone" <red735i@earthlink.net> (RE: [Leica] New Canon Optical Element Design)