Hi all I have a D10 with a Sigma 28-70 EX ASP lens and I seem to have a problem with the focus. Used fully auto (with a 550ex flash) on 70mm, shooting close to a small subject, the cameras confirms that it has focused but viewed later it is very soft. On manual focus it has the same problem, seems sharp in the view finder but viewed later it's soft (not as soft but still soft). Has anyone experienced the same problems? Many thanks in advance Steve.
