Archived posting to the Leica Users Group, 2004/05/04

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Subject: [Leica] Two sets of aperture blades?
From: PetersonAG at NAVSEA.NAVY.MIL (Peterson Arthur G NSSC)
Date: Tue May 4 11:54:24 2004

It's definitely the drugs.  :)  :)  :)

Art


-----Original Message-----
From: Karen Nakamura [mailto:mail@gpsy.com]
Sent: Tuesday, May 04, 2004 13:56
To: Leica Users Group
Subject: [Leica] Two sets of aperture blades?

OK, am I on drugs or does Leica use two sets of aperture blades? It 
seems on many of my lenses, that looking from the front, there is one 
set (main set?) that closes down, but from the rear, there's another 
set that gradually closes down and catches up at f/22 or so. It's 
very odd.

Is this to smooth out bokeh? Or am I seeing an illusion?

Karen


-- 
Karen Nakamura
http://www.photoethnography.com/ClassicCameras/
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