Good "conversation" on eye pieces here. Chuck, you're comments are very informative and helpful (to everyone). This is the real value of this board - the exchange of information and knowledge (about astronomy). As Siegfried well knows :) I have a 6" Brandt doublet refractor, fl 16.3. Incredibly long (the tube alone is 8 feet in length -yikes, ugh, n ah, very light weight actually - it's just the climbing up the ladder steps with it and lifiting it over the head to seat it in the cradle (but worth it :)) ) MANY years ago, at Siegfried's suggestion, encouragement, recommendation ... two Clave eyepieces were purchased and they are still the best eyepieces to use in that refractor. Also, many years ago, the Clave's were put into a dobsonian and the views, while good were easily beat by other eyepieces. Chuck's comments explain why. Still, I would NEVER give or sell those clave s . Eyepieces are like telescopes, a good scope or (eyepiece) will not "wear out" or lose it's abillity to provide mind numbing views. Well, you might get aperturitis , but it's a disease only the ardent astronomer can appreciate. The best eye piece for a scope depends on the scope. It doesn't have to cost an arm and a leg, it just had to work with your optical system.