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[OM] Re: IMG: Abstract crow with 135/3.5

Subject: [OM] Re: IMG: Abstract crow with 135/3.5
From: Chuck Norcutt <chucknorcutt@xxxxxxxxxxxxxxxx>
Date: Mon, 01 Sep 2008 06:40:09 -0400
Ooops.  I forgot to comment on the wierd out of focus highlights.  I 
haven't a clue.

Chuck Norcutt

Peter Klein wrote:
> Today I experimented with an old 135/3.5 Olympus OM tele on the 
> E-510.  It's like using a 270mm lens on a 35mm camera. Manual focus, manual 
> stop-down, aperture priority metering, and in-body image stabilization. I 
> focused wide open, then counted clicks down f/8 to shoot.
> 
> This is the best shot from today, a natural abstract with a crow and some 
> electrical wires:
> <http://gallery.leica-users.org/v/pklein/album170/P8312368CrowWires-w.jpg.html>
> 
> Now, check this out:
> <http://gallery.leica-users.org/v/pklein/album170/P8312345GirlSlide-w.jpg.html>
> Behind this typical childhood scene is a weird optical effect. Out of focus 
> highlight disks are greenish donuts surrounding a reddish core. Here's a 
> 1:1 crop showing the effect more clearly.  See the highlights on the 
> woman's glasses, bolts and washers on the bench, and cris-crosses on the 
> fence behind.
> <http://gallery.leica-users.org/v/pklein/album170/P8312345CrazyChroma.jpg.html>
> 
> A couple more scenes from the park with the 135:
> <http://gallery.leica-users.org/v/pklein/album170/P8312358SGalBleachers-w.jpg.html>
> <http://gallery.leica-users.org/v/pklein/album170/P8312354ShihTzu-w.jpg.html>
> 
> Focusing is difficult.  If I keep using this lens, or my 100/2.8, I'm going 
> to want a focus confirmation chip on the lens adapter, and/or a Katz Eye 
> screen.  Anyone with experience with either of these--how well do they work?
> 
> --Peter 
> 
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