Amazon.com: PENTAX smc XW23 2-Inch Eyepiece for Astronomical telescopes. Extra-Wide 85°Apparent Angle of View, 20mm Eye Relief, Multi-Layer Coating, All-Weather, Made in Japan : Sports & Outdoors
XW Series Eyepieces - Ricoh
Amazon.com: PENTAX smc PENTAX XW40-R, 2-Inch Eyepiece for Telescopes High-Performance Eyepiece with an Extra-Wide 70°Apparent Angle of View, 20mm Eye Relief Original Multi-Layer Coating All-Weather Made in Japan : Sports & Outdoors