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Improved 70 degree field of view for easier viewing Designed specifically to provide ideal viewing conditions when used with a telescope Fully multi-coated lenses increase light transmission and color quality High-refraction, low-dispersion lanthanum glass elements deliver bright, high-resolution images with minimal aberrations and distortions Advanced computer simulation design technology was used to drastically reduce internal reflections producing brighter, clearer images JIS Class 4 weather proof construction makes these eyepieces more durable Long eye-relief for viewing with or without glasses Limited Lifetime Warranty XW30 XW40 Lens Structure: 7 elements 6 groups 6 element 5 groups Focal Length: 30mm 40mm Apparent Field of View: 70° 70° Eye Relief: 20mm 20mm Attachment Diameter: 2” (50...

Sales Price: $ 549