[LRflex] Digital APO correction in our futures?

Hi all,

Here is something that caught my eye.

Digital correction in software of optical design problems seems to be  
coming to the market place, something new to me, though it has been  
theoretically possible for some time.

Here is an exerpt from a short article in Digit, which says about  
itself, "Digit is the UK's leading resource for creative  
professionals, both in print and online." The article is entitled:  
Leica, Hasselblad Show New Digital Cameras, Wednesday 27 Sep 2006 -  
09:20, and can be read at:

http://www.digitmag.co.uk/news/index.cfm?NewsID=6201
After discussing the new Leica cameras, the article goes on to say,  
"Hasselblad launched what the company claims to be the world's first  
48 millimetre full-frame DSLR camera." Here is the later paragraph of  
interest:

"The camera is built around a new digital camera engine. Information  
about lens and exact capture conditions are fed into the engine for  
ultra fine tuning of the auto-focus mechanism, taking into account  
the design of the lens and optical specification of the sensor.  
Another feature is Digital APO Correction (DAC)."

What this "feature" means for new and old lenses is left unclear.

Can new lenses now be constructed more simply by using this mode of  
optical "correction"?

Can older lenses have their performance "improved" by a one-shot  
measurement of their inadequacies and the prescription of a digital  
correction?

As ever,

Bill
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