Why doesn't the side focus on Zeiss Conquests have any yardage markings? There are marks in the knob but they are meaningless without numbers. This is worthless to me. Why would anyone pay that kind of money for a scope that doesn't even bother to do what much much cheaper scopes do - put yardage marks and an index mark on the tube? I mean, it's a precision instrument made by Zeiss, cripessake... That's what they DO... Calibrate it to be parallax-free at specific distances. Truly perplexing.