Archived posting to the Leica Users Group, 2003/03/11

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Subject: Re: [Leica] focusing question deux
From: "lea" <lea@whinydogpress.com>
Date: Tue, 11 Mar 2003 15:21:08 -0600
References: <ED853626-53F8-11D7-BDCC-0050E42E6E0B@shaw.ca>

Perfect...NOW it makes sense.

Thanks.
Lea

- ----- Original Message ----- 
From: "John Collier" <jbcollier@shaw.ca>
To: <leica-users@mejac.palo-alto.ca.us>
Sent: Tuesday, March 11, 2003 1:37 PM
Subject: Re: [Leica] focusing question deux


> A picture is worth a thousand words:
> 
> http://www.leica-camera.com/kultur/mythos/innovationen/messsucher/ 
> index_e.html
> 
> The rangefinder optics are completely separate from the lens. The only  
> two connections from the view/rangefinder to the lens are the roller on  
> the lever that follows the lens as it focuses; and, the lens bayonet  
> ear that keys in the correct frameline set.
> 
> John Collier
> 
> On Tuesday, March 11, 2003, at 12:06 PM, lea wrote:
> 
> > Here's what comes of carrying my camera around playing with it....
> >
> > Why, when my lens cap is on my lens can I still see a double image?  
> > Where is
> > it coming from and why does focusing the lens (even tho it's capped)  
> > allow
> > me to focus? I'm sure this is some wonder of rangefinders that I'm not
> > familiar with but it seems to me that the capped lens ought to be  
> > preventing
> > the double image.
> >
> > I guess I've always thought that the 'main' (read: non-moving) image  
> > in the
> > viewfinder was from the viewfinder and the second 'ghosted' image was  
> > coming
> > from the lens. This is clearly not the case.
> >
> > What's up?
> 
> --
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> 
> 

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In reply to: Message from John Collier <jbcollier@shaw.ca> (Re: [Leica] focusing question deux)