Different camera is different. I am deliberately trying to reproduce the results from my wee Panasonic Lumix P&S here. The P&S would be sharp right the way across the frame - not necessarily a desirable trait, but I'd like the option if you see what I mean. This shot was also originally very undersaturated for my taste. GIMP soon fixed that. Ha!
I need to go and peer at the EXIF data on both this and some of my old shots - see what the f-ratios actually were instead of just guessing.