Archived posting to the Leica Users Group, 2000/05/01

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Subject: Re: [Leica] 1st version expensive 35mm Summilux vs latest
From: "Henning J. Wulff" <>
Date: Mon, 1 May 2000 15:47:29 -0700

At 2:05 PM -0700 5/1/00, Mark Rabiner wrote:

>It's my understanding that all our new  generation ASPH's starting with the 24
>are the result of soft glasses from Hoya which are pressed into place using a
>new process; a machine from a third party. Previously the high end ASPHs were
>ground down the whole way by one old guy who was kept very busy and they made
>sure he took his vitamins. Hence the extra grand or two per lens.
>The glass would harden after the process was over. I assume it involved heat.
>Mark Rabiner

Yep. Soft when hot. Hard when cold. I think it is the precision molds which
are the innovation, not the glass.

   *            Henning J. Wulff
  /|\      Wulff Photography & Design
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