I took delivery yesterday of the new APM branded magnesium 16x70 ED binocular, and today I had a brief opportunity to compare it with my Lunt 16x70 magnesium. A small modification to my Uni-mount facilitated mounting the binoculars one on top of the other, ideal for fast switching from one to the other. Physical characteristics are all but identical so I'd conclude the only differences are in the optics. This becomes evident when switching from one to the other. The APM is just that bit brighter and more colour neutral. Chromatic aberration is evident in the Lunt under certain scenarios, although that said, it's very well controlled and far from objectionable. In comparison the APM is remarkably colour free. More to follow when the weather cooperates and I get it under the stars.