More on Amazon.com : http://www.amazon.com/gp/product/B00092EIE8?tag=thefatkidin06-20
Meade 5-Element Pl?ssl 40mm 2-Inch Eyepiece
Wide 60 apparent field-of-view
Premium grade optical glass
Individually tuned multi-layered coatings for maximum light transmission
Lens edges and all internal metal surfaces are blackened to maximize image contrast
Parfocal - little or no refocusing required when switching eyepieces
