Archived posting to the Leica Users Group, 2001/01/30

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Subject: [Leica] Re: Re: 50 mm f/1.4
From: Jim Brick <>
Date: Tue, 30 Jan 2001 22:01:50 -0800
References: <> <>

At 09:16 PM 1/30/01 -0500, Margaret Jeffcoat wrote:
>The Glass is "My Term", his comment was that there was no difference in the
>optical quality between the R and the M, They are the same.
>So you make out of it what you want. BTW it was my understand that Leica
>made their own glass.
>Cheers Wilber

Sorry to dispel your dream, but Leica does not make any of the glass used
in their lenses.

They buy it, off the shelf, out of the glass catalogs from Hoya and Schott.

Any glass that Leica might make is for experimental purposes only. I'm not
sure they still do this. Erwin would know.

There is a very large optical quality difference between some M and R
lenses. You cannot even begin to compare the 24-M ASPH against the 24-R
lens. The 24mm M lens is head and shoulders better. As is the new 50/1.4 R
lens over the 50/1.4 M lens. And the 90 APO ASPH M lens is way ahead of
either 90mm R lens. And the list goes on, and on...

Where did you ever get such a reduculous idea?


In reply to: Message from Mark Cohen <> (Re: [Leica] 50 mm f/1.4)
Message from Jim Brick <> ([Leica] Re: 50 mm f/1.4)