Archived posting to the Leica Users Group, 2002/07/19

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Subject: Re: [Leica] When f 1 is too mush!
From: "Rei Shinozuka" <shino@panix.com>
Date: Fri, 19 Jul 2002 23:46:28 -0400 (EDT)

in my experience, the noctilux at the edges and corners not only exhibits
vignetting, but noticably increased depth of field versus the center
1" diameter circle.  so the noctilux's most pronounced out-of-focus
characteristics tend to be visible in objects away from the focus
plane but within the center 1" circle.  this  characteristic, in 
combination with the vignetting, contributed to the impression of circular 
movement, a.k.a. "neauselux syndrom."

one of the things i enjoy about using the noctilux over the past year
is that the results frequently surprise one; it creates a distinctive 
interpretation that is not literally anything you can see in the viewfinder.

- -rei

> From: "Aram Langhans" <langhans@yakima-wa.com>
> 
> Wow, that is really strange.  Why is it that in the second, thrid and fourth
> photos, the top corners and the edges are fine but the top middle of the
> frame is trippin'?  The corners are the same distance away fromt he lens as
> the top edge, but have a very different out of focus effect.  It is like an
> out of focus wedge moving away and towards you from the main point of focus.
> The last photo is more what I would expect.  You can see a nice slice across
> the photo of the in-focus range and both foreground and background are out
> of focus.
> 
> Aram
> 
> 
> > Date: Fri, 19 Jul 2002 08:42:58 -0700 (PDT)
> > From: Peter Klein <pklein@2alpha.net>
> > Subject: Re: [Leica] When f 1 is too mush!
> > Message-ID: <Pine.GSO.4.05.10207190831360.10686-100000@mucho.2alpha.com>
> > References:
> >
> > For anyone who didn't see them, Rei's series of his kids lying among the
> > autumn leaves are a perfect example of "nausealux syndrome":
> > http://www.shinozuka-family.com/200110autumnlux2/index.html
> >
> > They reminded me of a game I played when I was very little. I liked to
> > spin myself around until I got dizzy. Then I'd lie on my back and look up
> > at the tree branches and sky, and watch them continue to spin around for a
> > while.
> >
> > Poor B.D. got seasick online when Rei posted these.
> >
> > - --Peter Klein
> > Seattle, WA

- -- 
Rei Shinozuka shino@panix.com
Ridgewood, New Jersey

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