After working with it all summer at 100 yard targets I've really come to consider that Diamondback a 4x10.5 or so. Every time I go past 11 it gets just a bit fuzzy, not exactly blurry or distorted around the edges....just not clear and the exact edges of the wires get hard to find relative to target spots and lines. Still a good scope for the money, just not perfect. Any better takes at least double the money.