I've carefully compared my FF II 4.5-14x42 to my Vortex Viper 6.5-20x44 and Japan-built Sightron SII 6-24x42, Redfield Revolution 3-9x40 and Sightron SII 3-9x42. I primarily compared clarity, resolution, brightness, and just overall "pleasant to look through" attributes within the common magnification ranges. The FF II is better than any of them. It's just very slightly better than the Vortex and the Sightron 6-24 in some ways (those two are pretty near a tie and I haven't decided which is better). It's substantially better than the Sightron 3-9 and the Redfield.