I can't talk about the Vortex, but top of the line Minox binoculars are very good. Optically, I rate them as very close to the big three at less than half price. I just got back from a desert deer hunt where I used a new pair of Minox 15 X 58s mounted on a Bogen tri-pod. Outstanding performance. I could glass for hours with no eye strain. There was never a moment when I regretted not spending more money. Doug at Camera land made me a great deal, way less then anybody else.