I have a 2.5 to 10x scope w/o a parallax adjustment built in. I have no idea where the focus of the objective is set, but boy if I am suffering a parallax issue, it doesn't seem to affect the accuracy of the rifle mounted underneath.
Next time I guess I'll pony up the additional shekels and purchase a scope with the parallax adjustment.
I also have a 4.5 to 14x Nikon with parallax knob on the side of it. I wonder whether the lines scribed on the knob are reliable for setting the focus? Or whether I should futz with it until I get it perfect or something as judged by the Mark 1, Mod 0, eyeball.
Thanks so much for your input.