It seems that some scopes have a super thin....edge between the picture and environment...and others are thick...hmm..I don't know if I'm explaining this well. Basically when you look through a scope the edge of the scope tube is thick creating a big black ring around the picture or some scopes have a super this black ring around the picture..I like it when it's super thin..is there technical terms for this? Also is it a quality thing? Maybe higher end optics are better (thinner black rings)....




















































