It's often hard for a beginner to understand why anyone would pay more for a single telescope eyepiece than they paid for their
beginner's telescope, telescope, mount, eyepieces and all. It must seem stranger, still, for a beginner to see how some of us astronomy nuts stay up late at night arguing the merits and pitfalls of various
telescope eyepiece designs and telescope eyepiece brands. What's all the fuss?
On a
telescope eyepiece, you are paying for two things. First, how sharp and bright, not only in the center, but at the edge of the field and second, how wide a field.
Telescope eypieces which offer the best of both are very expensive and, despite some fabulous telescope eyepieces such as the
Televue Nagler and the
Pentax XW (just a couple of my favorites), the perfect eyepiece has yet to be made.
Of course, the best and quickest way to understand the lure of premium telescope eyepieces is to look through one. It's addictive.