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

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Subject: [Leica] Two sets of aperture blades?
From: Frank.Dernie at btinternet.com (Frank Dernie)
Date: Wed May 5 01:24:49 2004
References: <20040504222901.32755.qmail@web20209.mail.yahoo.com>

I have just checked and I can't see two sets of aperture blades in mine.
Frank

On 4 May, 2004, at 23:29, marcus wrote:

> My CV 35mm pancake has two sets, but they do not
> overlap in a way that cuts the corners to make a more
> circular aperture. I don't know the why of it.
> -Marcus
> --- Karen Nakamura <mail@gpsy.com> wrote:
>>
>> 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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Replies: Reply from marcusb6 at yahoo.com (marcus) ([Leica] Two sets of aperture blades?)
In reply to: Message from marcusb6 at yahoo.com (marcus) ([Leica] Two sets of aperture blades?)