[Leica] Erwin Puts farewell to Leica World

[mark at rabinergroup.com (Mark Rabiner)]

Cirrus clouds are tricky because just like fence posts you can think you 
have one lined in focus but it?s the one next to it.
Stratus clouds you may as well go home or go in to Guess Toe Matic focusing. 
Which is how I focused on my Voigtl?nder Vito anyway.
Cumulus are what you are going for. They are well defined no two exactly 
alike and are easy to focus on with any kind of rangefinder systems.
Stratocumulus again not good too smooth.
Altocumulus are past infinity so you have to compensate and bring two 
lunches. They are "far far away" an optical term.

 
 

-- 

Mark William Rabiner
Photographer

?On 10/27/19, 5:05 PM, "LUG on behalf of Mark Rabiner" 
<lug-bounces+mark=rabinergroup.com at leica-users.org on behalf of mark at 
rabinergroup.com> wrote:

    I've always had a fascination with the infinity symbol ? on my first 
camera I got in 1965 with f stops and shutter speeds when I was 12 or 13 it 
was a mid 1950's Voigtl?nder Vito BL. I was not sure what to focus it at 
infinity on it seemed like it should be a long way away maybe I should pack 
a lunch. No hills in the north shore Chicago suburbs to speak of.
    There was no internet to look it up there was no one to ask and the 
Dewey Decimal System was not doing me any good in the Winnetka and Glencoe 
library's.
    So I settled on clouds. I decided clouds were infinity. I aimed at 
clouds when I adjusted the eyepiece on my camera for years. Decades.
    Erwin may have noticed some of my occasional infinity posts on the LUG 
and did a thing on what  ? (infinity) means in photography on a real level 
like how far way is it really.
    Turns out its not all that far away you don?t even need to bring your 
lunch!
    The focal length of your camera times the square root of the hypotenuse 
that kind of thing... couple of hundred feet away - piece of cake.
    You need to know how to to math though or how to use a slide rule. Or 
Geometry. Or trigonometry.  No biggie, just way out of my pay grade.
    Clouds may be bit fluffy though for accurate focusing but they've all 
I've got; on a cloudy day.
    
    Here's one right next to a Leica M2!
    
https://www.35mmc.com/05/04/2019/compact-excellence-a-review-of-the-voigtlander-vito-bl-by-andrew-morang/
    
    
     
     
    
    -- 
    
    Mark William Rabiner
    Photographer
    
    ?On 10/23/19, 11:15 PM, "LUG on behalf of Paul Roark via LUG" 
<lug-bounces+mark=rabinergroup.com at leica-users.org on behalf of lug at 
leica-users.org> wrote:
    
        Don Dory via LUG <lug at leica-users.org> wrote:
        
        > I will just add that Leica tests every lens and keeps the record 
for every
        > lens produced.   The MTF is from real lenses and not some idealized
        > computer projection.
        > ...
        
        
        Which is unlike most of the companies.  In my pre-Leica days, I 
became
        frustrated returning lenses that focused at different places for the
        different edges of the field.  I have a mountain ridge at "infinity" 
and
        clear air where I live.  The poor assembly of the middle market 
optics was
        very obvious and frustrating.  We do get something for those prices 
we pay.
        
        Paul
        www.PaulRoark.com
        
        
    
    
    
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