Having both Zeiss and Nightforce scopes I can honestly say Zeiss holds a slight edge in "clarity" at the highest powers. However, with Nightforce you know what you are getting; and whats absolutely MOST important when shooting long range...... Repeatability and consistency of the turrets!! You will see what your shooting at with both brands. But with Nightforce when you turn your dial to, say, 28.5 moa then back to zero, you know with confidence you are back to your zero every time regardless of how any times you turn your turrets. Everyone gets soooooo caught up on glass clarity, is it important?-absolutely. But what everyone forgets about is its the quality and repeatability of the turrets is what makes tactical a long range scope a quality piece of equipment. With Nightforce you know for a fact what you are getting!!