Archived posting to the Leica Users Group, 2001/02/28

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Subject: [Leica] Re-Shaking at 21
From: "Neal Friedenthal" <neal@nairobisafari.com>
Date: Wed, 28 Feb 2001 21:03:27 -0500
 
The phenomenon is called "Axis of rotation" ie. the longer the object the greater the movement around its center. Whether it is a lens or a gun it is the physical 
length that makes the difference. This is also why a mirror telephoto lens is easier to hand hold that a straight tele of the same focal length, it's shorter in actual 
length, less axis of rotation.