Me and a buddy of mine sat on my porch one night with several different luepolds zeiss, and Swarovski. We had from middle end to high end with all brands. We each kept looking through all of them every few minutes from dusk to dark. After that all I have are luepold 5 and 6s except for one Swarovski on my wife's rifle. I took off Swarovski and traded them for luepolds. My buddy like the Swarovski. But with both agreed it was very little difference in either. Neither of us was impressed with zeiss