Archived posting to the Leica Users Group, 2004/09/28

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Subject: [Leica] Rigid Summar
From: dorysrus at (Don Dory)
Date: Tue Sep 28 16:52:30 2004

The Summar does indeed have an interesting look especially wide open or
at least until F4 or so.  Coma, astigmatism, and plain old flare create
an image that is very flat with good outlines but no smaller details
that are not blurred with a core of sharpness.  If you are unfortunate
enough to have a bright light source in the image then veiling flare
will substantially degrade your image quality.  Oh, field curvature
means that there will be only one smallish region that is looks sharp
unless you very carefully pick your location.

With all that, for some things, the Summar provides a unique look that
is highly desirable.  If you are willing to accept a fair amount of
coating marks (ha, ha, ha) you can find these really cheap; almost as
cheap as an Nikor 50mm F1.4 in non AI mount.

In addition to significant brassing, the aforementioned front element
flaws, my Summar has a small amount of separation in the front group.


-----Original Message-----
[] On Behalf
Of Dan Colucci
Sent: Tuesday, September 28, 2004 6:06 PM
To: Leica Users Group
Subject: RE: [Leica] Rigid Summar

a member here mentioned a recent LHSA Viewfinder article on
SUMMARS..anyone have a copy ?  I have contacted lhsa as well


From: on behalf of
Douglas M. Sharp
Sent: Tue 9/28/2004 6:01 PM
To: Leica Users Group
Subject: Re: [Leica] Rigid Summar

Thanks Feli,
you beat me to it, Laney says 2274 of them built in 1933 only.

feli schrieb:

> On Sep 28, 2004, at 2:31 PM, Dan Colucci wrote:
>> I just bought me a rigid summar...I have always wanted to play with
>> one and have been
>> fascinated with the physical "look" of the lens itself...
>> anyone have any in-depth info on the rigid beyond it was only
>> produced in small numbers ?
> Leica made about 2000 of them. If I remember correctly it was an
> attempt to improve
> optical performance by reducing the mechanical play induced by the
> collapsible
> mount.
> Leica made a lot of Summars, but production ended in 1940 with the
> introduction
> of the Summitar which is a much better performer. The Summar is very
> flare prone
> and soft wide open. That said it has a unique fingerprint that can be
> very beautiful
> especially in black and white.
> Feli
> ________________________________________________________
> _______________________________________________
> Leica Users Group.
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In reply to: Message from colucci at (Dan Colucci) ([Leica] Rigid Summar)