Archived posting to the Leica Users Group, 1998/05/27

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Subject: Re: [Leica] 21mm. lens
From: "Bryan Willman" <bryanwi@seanet.com>
Date: Wed, 27 May 1998 10:38:48 -0700

this is a very weird behavoir for a 21 aspheric,
at least as far as I can tell.

- -----Original Message-----
From: Alberto Rodrguez Robles <arobles@coqui.net>
To: leica-users@mejac.palo-alto.ca.us <leica-users@mejac.palo-alto.ca.us>
Date: Tuesday, May 26, 1998 9:30 PM
Subject: [Leica] 21mm. lens


>I'm trying a new 21mm Asph. lens and found that the corners are soft and
>with poor focus.  I tried at all the apertures and the problem has been
>always there.  Is that a characteristic of this lens?  The center of the
>image is very sharp and with very nice contrast and as the image
>progress outwards it starts loosing sharpness and contrast.
>
>I've used the lens without any filter on it, on a tripod, on a Leica M6.
>
>Thanks,
>
>Alberto
>