Archived posting to the Leica Users Group, 2000/06/29

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Subject: [Leica] Re: impurities in lens
From: Jim Brick <jimbrick@photoaccess.com>
Date: Thu, 29 Jun 2000 13:49:30 -0700
References: <395B39CD.82185B4F@home.com>
 
At 01:04 PM 6/29/00 -0700, Chris Lee wrote:
>
>How can a bubble in a lens improve image quality?
>
>Regards,   
>
>Chris Lee

It cannot.

The best glass available for lens making used to produce bubbles when
cooling, or something to that effect. It was therefore said that the best
glass had bubbles. So if your lens had a bubble, it was high grade optical
glass.

Jim
Replies: Reply from "Dan Post" <dpost@triad.rr.com> (Re: [Leica] Re: impurities in lens)
 In reply to: Message from Ted Grant <tedgrant@home.com> (Re: [Leica] impurities in lens)