[Brightcolours]

[quote name='Klaus' timestamp='1295013673' post='5500']

For the dead center this is true. Starting mid-frame this is a very diminishing return on investment.

[/quote]

Don't bet on it, you can for instance see how things work "differently" when you put tests of lenses tested by you on the 8mp 350D and the 15mp 50D next to eachother. Where the 350D will show a weak performance of a lens, the 50D will show a similar weak performance of the same lens... however with a higher line width per image height score than the 350D test showed.



A similar trend will be seen with a 24mp camera compared to the 50D, it is not just lens + settings that get excellent results will only benefit of higher sensor resolution.



As example the Canon 50mm f1.4 USM:

EOS 350D:



EOS 50D:





Other example (Canon EF-S 17-85 IS):

EOS 350D:



EOS 50D: