Originally Posted by Lowell Goudge 
...there are a wide range of test photos that can show other aspects of lens performance that are not dependant on 100% pixle resolution, specifically but not limited to
...
- chromatic aberrations and purple fringing
I would rule this out. PF and CA in moderate amounts is highly masked by downsizing.
Originally Posted by Lowell Goudge ... it is bigger than most of us will ever print and pretty damm good!
Hmmm! No it isn't. Modern inkjets perform miracles
