Archived posting to the Leica Users Group, 2007/01/15

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Subject: [Leica] 28mm Summicron vignetting
From: luisripoll at telefonica.net (Luis Ripoll)
Date: Mon Jan 15 16:43:49 2007
References: <CA051663-64FA-4857-96A5-B82E5BE868DA@comcast.net>

Len, the pictures are beautiful, yes it is a lttle vigneting but IMO no too
much, I have the Elmarit M 21 and it has much more than Summicron. When I
had my R equipment I remember the 21 Super Angulon as more perfect.

Saludos cordiales
Luis 

-----Mensaje original-----
De: lug-bounces+luisripoll=telefonica.net@leica-users.org
[mailto:lug-bounces+luisripoll=telefonica.net@leica-users.org] En nombre de
Leonard Taupier
Enviado el: martes, 16 de enero de 2007 1:36
Para: Leica Users Group
Asunto: [Leica] 28mm Summicron vignetting

Here are a few examples of vignetting using the 28mm Summicron. These were
shot in b&w but the sky was crystal clear blue. These were shot by my son at
Zion, Bryce and the Grand canyon.

<http://gallery.leica-users.org/v/LeonardT/28mm/Img138.jpg.html>

<http://gallery.leica-users.org/v/LeonardT/28mm/Img145.jpg.html>

<http://gallery.leica-users.org/v/LeonardT/28mm/Img225.jpg.html>

<http://gallery.leica-users.org/v/LeonardT/28mm/Img136.jpg.html>

I'm not sure of the f stop but I believe they were in the f5.6 to f8 range.
We ran a test in my backyard of the Summicron versus the Elmarit (not asph).
The Elmarit had a little less vignetting. All the examples were easily fixed
in Photoshop using the lens distortion filter.

Len



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Replies: Reply from len-1 at comcast.net (Leonard Taupier) ([Leica] 28mm Summicron vignetting)
Reply from imagist3 at mac.com (Lottermoser George) ([Leica] 28mm Summicron vignetting)
In reply to: Message from len-1 at comcast.net (Leonard Taupier) ([Leica] 28mm Summicron vignetting)