Archived posting to the Leica Users Group, 2003/05/18

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Subject: [Leica] Summicron M 2/28mm ASPH performance flare/vignetting photos
From: "Jim Laurel" <jplaurel@nwlink.com>
Date: Sun, 18 May 2003 12:33:56 -0700
References: <03E63C98-8802-11D7-A816-0050E42E6E0B@shaw.ca> <001101c31c26$03b78680$0100a8c0@liyue> <00ad01c31c38$3968ed70$70a72350@home> <003101c31c6e$37cd7d60$6401a8c0@oemcomputer> <006101c31c7a$166f8120$6400a8c0@mtwk.sps.mot.com> <001101c31cca$50826440$6401a8c0@oemcomputer> <p0510036dbaec76dddee0@[204.174.36.233]> <005201c31cd0$65cb3f60$6401a8c0@oemcomputer> <p0510036ebaec90f505c5@[204.174.36.233]> <3EC73032.FE4A46D3@transbay.net>

Have a look at these images:
http://homepage.mac.com/jplaurel/PhotoAlbum6.html

The image of the Himba woman was made with a Summicron 28 ASPH wide open,
f2.0 at 1/60th sec around mid-day.  There was barely room for the two of us
in her hut.  The intensity of the light streaming in through the sticks that
form the hut's structure was intense.  If you've been to the Kaokoveldt in
December (thier summer), you know what I mean.  The sun is searingly bright
and hot, with ambient temps up to 120 degrees F.

Although a JPEG isn't a very good way to evaluate lens performance, I think
you can see that the Summicron 28 handled the bright backlighting very well
indeed.  And even wide open, I cannot detect any significant light falloff.

The photo of the young Himba Boy was made with a current generation
Summicron 50.  Though you wouldn't know it, this was also taken at mid-day,
in the shadow of a small hut.  Aperture was probably around f2.8.

- --Jim Laurel
Seattle, WA

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Replies: Reply from "Y. Li" <liyue@netvigator.com> (Re: [Leica] Summicron M 2/28mm ASPH performance flare/vignetting photos)
Reply from "Y. Li" <liyue@netvigator.com> (Re: [Leica] Summicron M 2/28mm ASPH performance flare/vignetting photos)
In reply to: Message from John Collier <jbcollier@shaw.ca> (Re: [Leica] Vignetting of Summicron M 2/28mm ASPH)
Message from "Y. Li" <liyue@netvigator.com> (Re: [Leica] Vignetting of Summicron M 2/28mm ASPH)
Message from "Rafael Alday" <rafaelalday@yahoo.es> (Re: [Leica] Vignetting of Summicron M 2/28mm ASPH)
Message from "Don Dory" <dorysrus@mindspring.com> (Re: [Leica] Vignetting of Summicron M 2/28mm ASPH)
Message from "Phong" <phong@doan-ltd.com> (Re: [Leica] Vignetting of Summicron M 2/28mm ASPH)
Message from "Don Dory" <dorysrus@mindspring.com> (Re: [Leica] Vignetting of Summicron M 2/28mm ASPH)
Message from Henning Wulff <henningw@archiphoto.com> (Re: [Leica] Vignetting of Summicron M 2/28mm ASPH)
Message from "Don Dory" <dorysrus@mindspring.com> (Re: [Leica] Vignetting of Summicron M 2/28mm ASPH)
Message from Henning Wulff <henningw@archiphoto.com> (Re: [Leica] Vignetting of Summicron M 2/28mm ASPH)
Message from tripspud <tripspud@transbay.net> (Re: [Leica] Vignetting of Summicron M 2/28mm ASPH)