Vintage Meade 4000 18mm Super Wide Angle Eyepiece (1.25")18mm Focal Length 67 Apparent Field of View 9mm Eye Relief 6 elements This used 18 mm eyepiece is Japanese made, with all the quality that implies. It is in excellent condition, with clean glass. The eyepiece body is free of any marks. Comes with only the top dust cap. The world standard in telescope oculars, Meade Series 4000 eyepieces yield the widest possible fields of view, consistent with pinpoint edge of field sharpness and long eye reliefand