Archived posting to the Leica Users Group, 2009/07/22

[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]

Subject: [Leica] Software lens correction
From: r.s.taylor at comcast.net (Richard Taylor)
Date: Wed, 22 Jul 2009 20:07:38 -0400
References: <cda.4d0dee69.3798edab@aol.com>

Actually, you're quoting me here and I agree with you completely.   
Technology advances and the best and most successful cameras should  
take as much advantage of new developments as they can.  We will  
almost certainly benefit from it.

Regards,

Dick



On Jul 22, 2009, at 6:33 PM, LRZeitlin at aol.com wrote:

> Geoff writes:
>
> "Mark - I think this design approach is going to lead to a whole new
> generation of light, small and highly capable lenses. The day may  
> come when
> the highly corrected optics we so prize today will become  
> anachronistic,
> like a mechanical watch. Will the fine Leica lens go the way of a  
> Rolex?"
>
> Why not? This is nature's way. The human eye has a primitive optical
> system, basically an F3.5, 20mm FL non-achromat doublet. The sharp  
> image circle is
> only about 3 mm in the center of the fovea. All those lovely, crisp,  
> wide
> angle images you see in your brain are constructed by software  
> processing.
> Here is what goes on in that complex computer in back of the  
> eyeball. The
> projected image is encoded, focus is corrected, edges of objects are  
> enhanced,
> colors are assigned to various portions of the image depending on  
> which cells
> in the retina are activated, small image portions are stitched  
> together as
> a function of eyeball position to form a whole percept, and an  
> illusion of
> depth is created by the disparity of images from each eyeball. A  
> pseudo image
> is created for blank spots (blind spot) in the retina. Further,  
> geometric
> shapes are corrected so that they accord with experience. Objects  
> viewed at a
> distance are made to appear larger. Colors constancy is maintained  
> despite
> changes in the viewing light. And so on.
>
> Computer technology has reached the point where lens defects can be
> corrected in software better than in glass. Nature doesn't depend on  
> perfect optics
> to provide a perfect image. Why should Leica?
>
> Mechanical Rolexii have a cult following. Just like Leicas.
>
> Larry Z
>
>
> **************
> What's for dinner tonight?  Find quick and easy dinner
> ideas for any occasion.
> (http://food.aol.com/dinner-tonight?ncid=emlcntusfood00000008)
>
> _______________________________________________
> Leica Users Group.
> See http://leica-users.org/mailman/listinfo/lug for more information



In reply to: Message from LRZeitlin at aol.com (LRZeitlin at aol.com) ([Leica] Software lens correction)