On Feb 5, 2006, at 7:11 PM, Rob Studdert wrote:
Practically though the best you will be able to achieve is about
44.6lpmm
From a post of mine early 2004:
".. the Kell factor in this case appears to be about 0.7 therefore the
resolution in lpmm can effectively be calculated as
3008pixels/23.5mm/2pixels*0.7kell factor=44.8lpmm. I used a
conventional test
chart in conjunction with a very high resolution lens in order to
reduce it's
effect on the measurement and I calculated an optical resolution of
44.6lpmm
and this was before I made any theoretical calculations."
http://en.wikipedia.org/wiki/Kell_factor
The Kell factor is a holdover from television and applies to display
devices. I've never heard anyone before imply that it has anything
to do with digital sensors.
Bob
