We already know that most lenses give their best performance at two stops narrower than wide open aperture. And Middle range gives better quality for zoom lenses. So, does it also apply to focus range as well?
I have a Canon 450D kit lens minimum focus distance of 0.8 ft. Would it be wise not to have my focus at 0.8 ft. and practically having my focus (and subject distance of course) at lets say minimum of 1.2 ft. ??