Pentax SMC 8-24mm Zoom Eyepiece (20x-60x with PF80 Spotiing Scopes)

Constructed with high-refraction, low-dispersion, multi-coated lanthanum glass optics, the SMC 8-24mm Zoom Eyepiece fits all Pentax spotting scopes for terrestrial viewing, and can also be used with telescopes with 1.25" focusers. It offers generous 18-22mm eye relief for comfortable viewing and an apparent angle of view as wide as 60 Degree. Built to Japanese Industrial Standards Class 4, it is weather resistant.