I got my minox 15x56 this spring and have had the chance to use them for a few scouting trips and an antelope hunt this last week. For the money they are good; however, with that said, a friend picked up a pair of the older 15x58 early last year that i looked through for a while on a barbary sheep hunt and from what i remember they seemed to be better quality. i haven't done a side by side comparison yet but they just seemed to be built better. I know the focus on mine isn't very smooth and they are more compact and just barley close enought to fit my beady eyes. if i had the choice i would get the old versions.