Archived posting to the Leica Users Group, 2011/04/18

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Subject: [Leica] OT: Technical Question- Panning vs WA Lens
From: rgacpa at (Bob Adler)
Date: Mon, 18 Apr 2011 13:14:41 -0700 (PDT)
References: <> <009d01cbfe02$963b4ed0$c2b1ec70$>

Hi Frank.
Is that still the case if I'm rotating on the len's nodal point? Seem not...
Bob (who is not old enough to remember the cameras you are referring to... 
 Bob Adler
Palo Alto, CA

From: Red735i <red735i at>
To: Leica Users Group <lug at>
Sent: Mon, April 18, 2011 12:55:36 PM
Subject: Re: [Leica] OT: Technical Question- Panning vs WA Lens

The problem is that you will be pointing the lens in different direction
with Panning.... which means that the image perspective is different for
each frame....
Perspective is always dependent on distance to the subject, but too, in that
definition is that the subject is always in the same relative angle to the
camera.  When you pan, this breaks the rules...perspective changes.

Do you remember the old Circuit cameras that made images from a moving lens?
( More modern examples are the Panon and Widelux Cameras...).....
The particular perspective could not be copied compared to stitching....
because at each and every image location ( think in terms of a swinging lens
that moves in precise increments) is perpendicular to the lens....  Whereas
in WA lenses, the extreme right and left of the image is actually quite an
angle from the optical axis of the lens....

The results are different....  ( not better, not worse, just different)....

The most interesting thing about this topic is that the swinging camera
approach is most close to what your brain actually sees through your eyes...
you usually pan your head when you look at a scene...  rarely do you use
peripheral vision, which is more like a WA lens .....

OTOH, 99.99999999999% of the population would never know the difference....
and of those that do, 99.9999999% would not care.

But don't let an architect catch you......

Frank Filippone
Red735i at

I am trying to understand if I can take a wide angle photo using
panning/stitching with a normal lens that would look like it was taken with
a WA lens. My specific question is if I can get the same coverage and
perspective using an 80mm Hassy lens and panning/stitching 3 or 4
overlapping shot as I could with the 40mm Hassy. 

If so how would this best be accomplished? Standing back further with the 80
than with the 40 or just at the same spot with the panning. Would the
image's perspective be the same?

Leica Users Group.
See for more information

Replies: Reply from red735i at (Red735i) ([Leica] OT: Technical Question- Panning vs WA Lens)
In reply to: Message from rgacpa at (Bob Adler) ([Leica] OT: Technical Question- Panning vs WA Lens)
Message from red735i at (Red735i) ([Leica] OT: Technical Question- Panning vs WA Lens)