Obviously there is a difference in overall size, objective size and mag, but i compared these against my mate minox 10 x 42 s the other night at dusk. these cost him £200 from sportsman allegedly reduced from £400. As far as light gathering went (which is whats important to me) the minox lost big time. Objects completely indistinguishable by the minox were clear and bright in the opticrons.
I'm still not claimimg they are the best bins in the world but i think you are hard presses to find brighter cheaper
hope this helps
John