A couple Hide member's requested I take some through the lense pics with my Vector 21....here's a couple I took this morning...these ranges are in meters..
From edge to edge the aiming circle covers one mil...if you need to know the size of your target, with a little math, you'll know exactly how big the object is. I used this system this spring while bear hunting to help judge how big the bears were that we saw on distant mountains....pretty cool stuff.