ZEISS!!!! I didn't believe it when everyone told me they were clearer than leupold either. A friend of mine bought one, he kept bragging about it. We both had same power scope, mine a 3.5-10 VX-3, the ones supposed to bring in every bit of light possible, so I finally looked thru his. we went out one evening, sat on the deck, and periodically looked thru them, as late as you could see. an hour after dark, you could still see the cows in the field beside us, 300-400yds away, with very little moon light. I got tired of listening to him rub it in, so I went inside. He could still see. you can tell a difference in the day, especially looking in the woods. In fact, right now I am trying to trade one of my leupolds in on a zeiss. the 6.5x20 I have owned and liked a bunch. Another friend had me buy a scope for him once, and I told him I was buying one as well, decided to buy the Zeiss instead. He told me to compare them, but he would take whichever one. both brand new scopes, a leupold 8.5-25x50, w/ 30mm tube, compare to the zeiss 6.5-20 w/ 1" tube. I compared them periodically all day, then again at night. He got the leupold. I have looked at the SIghtron scopes, and unless they have changed a ton, I wouldn't consider them, but hey, I was wrong once before.