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Improved 70 degree field of view for easier viewing XW 7, 10, 14 , 20 will give a wider field of view than our previous eyepieces when used on Pentax Spotting Scopes or with telescopes XW 14 and 20 are 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 Specifications: XW3...

Sales Price: $ 339