Archived posting to the Leica Users Group, 1999/09/12

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Subject: Re: [Leica] Plastic Aspheric Lens Elements
From: Andre Jean Quintal <megamax@abacom.com>
Date: Sun, 12 Sep 1999 07:13:09 -0400
 
At 03:31 -0400 12/09/99, Art Sala wrote:
>Of the lens manufacturers who include aspherical lens elements in their
>lens design, who uses plastic and who uses glass?  Leica...plastic or
>glass?  Canon?  Nikon?  Zeiss?
>
>Cheers,
>Arturo
	--> it seems HOYA controls the technology
	that allows to make larger aspheric glass elements
	and that some of their work or technology
	is used by Leica.

	AJQ