All of our eyepieces are constructed with a high-refraction, low-dispersion lanthanum glass that consistently delivers bright, high-resolution images with minimal distortion. In addition, all XW series eyepieces are built to JIS Class 4 a weather-proof standard which increases their durability in less than ideal conditions. Designed for use with PENTAX brand spotting scopes and with astronomical telescopes with appropriate 1 1/4" or 2" focusers.

Compatible with the following: PF-65 and PF-65ED(A)II series spotting scopes, PF-80 series spotting scopes, PF-100 series spotting scopes.