> have you ever used this Teleconverter? > Have you some comments? In my experience, it doesn't work well with long lenses because it has a limited focusing range. The instructions are to set the lens at infinity then allow the teleconverter to do the focusing. With telephoto lenses, this only works when the subject is at or near infinity. When the subject is closer, the lens has to be focused closer too. The teleconverter will then fine tune the focusing.
Tom Reese
