This is the second of my Sigma 18-200 OS pictures. I was pleasantly surprised to find out how close
I could focus. In the last shot I was sitting at the table directly above the coke can. In general
the pictures were nice and sharp. I don't go around snooping out the difference between edges
and centre or indeed the relative sharpness at different focal lengths. The differences between
subjects from shot to shot tend to negate quibbling issues like that in my experience.