07-13-2013, 02:31 PM
Quote:If the lens is fine at 3m and further, my guess is it is not defective. Just a design "issue" one sees at close focussing. Like boris says, an extension tube will allow you to get closer without getting into the trouble zone. a 12mm tube already will bring you within 3 meters while the lens is at infinity.
Yes, thank you. In fact stopping down to f5.6 the lens is sharp for close up focusing also at the 200mm end.
Frank