There's a little context involved: - The magnification you get from a telescope/eyepiece combination is F_t/F_ep, where F_t is the telescope's focal length, an

There's a little context involved: - The magnification you get from a telescope/eyepiece combination is F_t/F_ep, where F_t is the telescope's focal length, and F_ep is the eyepiece's focal length. - There are different kinds of eyepieces, and not all of them perform equally well on all targets. Broadly, you have "Planetary" targets, which are the planets, and DSOs, or "Deep-Sky Objects". The latter category includes galaxies, nebulae, and the like. --- Essentially, what GP is saying is, "Don't rush into buying equipment, look around and pick the right tool for the job".