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

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Subject: Re: [Leica] focusing question deux
From: John Collier <jbcollier@shaw.ca>
Date: Tue, 11 Mar 2003 12:37:43 -0700

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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Replies: Reply from "lea" <lea@whinydogpress.com> (Re: [Leica] focusing question deux)