I do not know if I am just being a tad picky, but what is the acceptable margin for sharpness? What level do I need to obtain to get good printed results? To elaborate, do I need to view my shots at 100% zoom to get the true measure of it? That is how I have been judging my pics. Is a slight blurriness acceptable? I photograph a lot of nature, so if the eye and iris of said critter do not come out sharp, I normally disregard it. Dunno if I am beeing too broad on this subject.