Scope basics: Part 2
by Tom Gaylord, a.k.a. B.B. Pelletier Part 1 Parallax Parallax is an optical term describing how the point of view affects what the viewer sees. The driver of a car may see his speedometer needle at 60 m.p.h, while a passenger to his right may see it hovering just above 57 m.p.h. In the UK, … Read more