I believe NF is prolly an excellent brand - though commanding more $$$ than warranted and more than others at same quality level - MHO.
Sorry, i was thinking strictly about optics...Interesting... what's your def of quality? If it's just optics I might agree. other than that, Leupold, Nikon, Burris, Bushnell, Sightron etc., dont hold a candle to NF... IMO