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[OM] Speaking of lenses [was Speaking of sharpness ...revisit to SS for

Subject: [OM] Speaking of lenses [was Speaking of sharpness ...revisit to SS for handheld macro
From: usher99@xxxxxxx
Date: Wed, 18 Sep 2013 16:27:35 -0400 (EDT)
CN writes:
>>If relative to the exit pupil focal length will disappear
>>from the calculation and leave only magnification.


Well I agree that the exit pupil motion is important and amplified by 
the magnification but at the end of the day the
only motion that matters is the image on the sensor that induces 
blurring by camera shake, lateral or rotational.

Angular shake must cause proportionally more blurring as mag increases. 
However FL never drops out, IMO. Don't think of FL but working distance 
instead. Unless I fell into a rabbit hole and a non-Euclidean world a 
displacement resulting in angle of displacement theta (angle between 
original position of the object to sensor to displaced location by 
shake)
will result in the image moving on the sensor by d *(tan(theta) where d 
is the object distance to the sensor. So the further away the object is
the more image movement on the sensor for the same mag and MORE 
blurring. It is fortunate I am not a tort lawyer as I can't convince 
anyone.
Look at the Canyon link again too.

Where is our own recovering physicist from Berkeley? Mooooooooooose, 
weigh in here please . I also have it on good authority that one of 
your in house  but very reclusive consultants, Dr. Shake, (3rd cousin 
once removed of Dr. Diffraction) made the move to NY. I am moving this 
issue to the Court of Appeals with Dr. Shake and Moose to adjudicate. I 
don't mind being incorrect if it clarifies a burning issue, but this is 
not the case here.

I have revisited this issue and am not on shaky ground, Mike




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