I looked through a ziess conquest 6-24 the other day at the range. The guy was scoffing at my 4200. I was not impressed with the conquest at all. The resolving power and the colors were no better than my 4200. Power for power the bullet holes were just as clear as were the coloring. The 4200 does have a bit fish eye around the edges of the view, a touch more than the conquest, but you shoot in the middle...Sure the mechanics were nice, but the view no better. So why drop an extra 500 for the Ziess? To buy a name?
Another guy had a new VX3 6.5-20LR with turrets, I thought it was nicer than the ziess and my 4200, might be my next scope. I bought a set of HD Leupold bino's, it is amazing the difference when you look thru the bino's then thru these scopes, the ziess and the 4200 both seemed like they had plastic lenses in comparison.