Archived posting to the Leica Users Group, 2007/03/19

[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]

Subject: [Leica] Focus, Noctilux, M8, C Mode & Scotch
From: carlmuck at (Carl Muckenhirn)
Date: Mon Mar 19 09:05:47 2007
References: <> <>

Isn't the rangefinder supposed to indicate the "focus" point of the  
lens? Isn't that why it is parallax corrected?

If there is an issue here, the simple fix is to rotate the camera 90  
deg. when doing this test. That should make the (virtual) focus plane  
and film plane the same.


On Mar 19, 2007, at 11:08 AM, Lottermoser George wrote:

> Over on the Leica Camera User a Leica rep responded to this "ruler  
> test" with some insight. Because the range finder windows are off  
> axis from the lens the test is really quite useless for rangefinder  
> cameras. One really has to check the focus with the film plane and  
> the subject plane at absolute parallel - as that is the only time  
> that the rangefinder  and subject will actually work. Makes perfect  
> sense. When you consider this while testing; results become very  
> different. It quite altered my way of testing and working with the  
> M in the last few weeks.
> Regards,
> George Lottermoser
> On Mar 17, 2007, at 2:54 PM, Robert Rose wrote:
>> If I try shooting at a ruler, at the closest focus around 3.5  
>> feet, the focus seems to be maybe 0.5 to 1.0 inches beyond the  
>> focus I set.  (Of course, when hand holding I am probably swaying  
>> more than that.)  With the shallow DOF at f/1, this is enough to  
>> put an eye out of focus.
> _______________________________________________
> Leica Users Group.
> See for more information

Replies: Reply from imagist3 at (Lottermoser George) ([Leica] Focus, Noctilux, M8, C Mode & Scotch)
In reply to: Message from robert.rose at (Robert Rose) ([Leica] Focus, Noctilux, M8, C Mode & Scotch)
Message from imagist3 at (Lottermoser George) ([Leica] Focus, Noctilux, M8, C Mode & Scotch)