The value must have 5x barlow lens doubles the magnification of any 1.25 inch eyepiece;double the capacity of an existing set eyepieces at the cost of a single eyepiece
Quality aluminum stock and black anodized body
3 element 2 group lenses with multi coated optics design make image more crisp and sharp
Qulity and shorty aluminum stock and black anodized body for a convenient long term use
2 element one group broadband green film multi coated optical glass;the housing is blackened to maximize image contrast