I have the smaller version of this spotting scope. I believe its 15-48x65mm. It is of decent build quality, but I struggle field judging animals that are beyond 500yds. It really loses clarity at high mag setting. I tried using it to spot grouping at 250yds and I couldn't see the holes in white targets. Granted it was getting late in the day and it was cloudy. I had no trouble seeing the target in my rifle scope though. I'd say I'm disappointed in its performance, but I didn't pay $$$ for it though.
