In the past, I've always thought the ocular bell's adjustments were for making the cross hairs clear and sharply focused. A friend of mine and I were at his range recently and he says it also will sharpen the focus on the target. I know the objective /side focus is for parallex and also does target focus as a side effect. I don't remember the scope brand. Does anyone know why this is true on some scopes? It did sharpen the target on that scope while it kept the reticule sharp. Was this a fluke or what?