Lack of lenses had been the major problem faced by Sony enthusiasts while hunting for a Full Frame interchangeable lens camera. Sony has addressed this by releasing various lenses at regular intervals. The 70-200mm certainly belongs to the class of similar lenses from leading brands. Though we have not compared them side-by-side, we have a feeling that this Sony lens will exceed or at least match them in image quality. More importantly, Sony users will no longer feel handicapped for want of quality lenses. Best Buy indeed.