Compatible with their PF-65 and PF-65 ED II series, PF-80 series, and PF-100 series spotting scopes plus just about any telescope that accepts 2" eyepieces, the Pentax SMC XW 16.5mm Eyepiece produces a moderate magnification that balances field of view with examining details, whether you use it for astronomical or terrestrial subjects.
Using low-dispersion lanthanum glass with a seven elements in six groups lens configuration and antireflection multicoatings, views through the eyepiece are crisp and bright with high resolution and minimal distortion. The spacious 70° field of view and exceptional 20mm eye relief ensure maximum comfort for long-duration use.
Focal Length 16.5mm
Apparent Field of View 70°
Eye Relief 20.0 mm
Eyepiece Barrel Diameter 2"
Dimensions ø: 3 x L: 5.6" / ø: 7.6 x L: 14.2 cm
Weight 26.3 oz / 745 g