Very impressive results Stephen.
I noticed the difference on the rim of the can at 1:1 magnification. The label was there at 150%.
This to me clearly shows how digital image processing has improved over the years.
The other thought when seeing this is to compare it with good old film and wonder at the ISO equivalent. I think the thread ' Thoughts on DSLR's future developments ' has some relevance as would you want more resolution than this appears to show. It may be interesting for you to do a similar pic of everyday objects and post it in that thread.
Doing so could of course generate personal expense for me.
Don