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  1. Pentax 3.5mm XW extra wide angle eyepiece

    $299.00
    This very short focal length Pentax eyepiece has a wide 70° field of view combined with a long 20mm eye relief for eyeglass use . . .
  2. Pentax 20mm XW extra wide angle eyepiece

    $299.00
    This medium focal length Pentax provides sharp and very wide field images for both terrestrial and astronomical observing . . .
  3. Pentax 10mm XW extra wide angle eyepiece

    $299.00
    This short focal length Pentax is a high power eyepiece usable for both terrestrial and astronomical observing . . .
  4. Pentax 5mm XW extra wide angle eyepiece

    $299.00
    This short focal length Pentax eyepiece has a very wide 70° field of view and very long 20mm eye relief, a uniquely useful combination not matched by other eyepieces . . .
  5. Pentax 8-24mm SMC 1.25" long eye relief astronomical zoom; 21-63x or 26-78x spotting scope zoom

    $359.00
    This is an ultra-premium six-element zoom eyepiece with surprisingly good eye relief for those who must wear eyeglasses while observing. Designed for use with Pentax spotting scopes, it can also be used for astronomical observing in any telescope accepting 1.25" accessories . . .
  6. Pentax 14mm XW extra wide angle eyepiece

    $299.00
    This medium focal length Pentax is a dual-purpose eyepiece for both terrestrial and astronomical observing . . .
  7. Pentax 7mm XW extra wide angle eyepiece

    $299.00
    This wide field Pentax eyepiece is designed for high power observing of objects on the ground by day and in the skies at night . . .
  8. Explore Scientific 3X Barlow for 1.25" eyepieces

    $169.99
    This new four-element 1.25" 3x Explore Scientific focal extender (Barlow lens) triples the power of any eyepiece used with it, with flat-field and essentially apochromatic performance . . .
  9. Explore Scientific 5X Barlow for 1.25" eyepieces

    $179.99
    For high power with a short focal length refractor or reflector, this Explore Scientific four-element 5x image amplifier (Barlow lens) is hard to beat. It quintuples the power of any eyepiece used with it, with a flat field and essentially no color fringing . . .
  10. Explore Scientific 2X Barlow for 1.25" eyepieces

    $159.99
    This new four-element 1.25" 2x Explore Scientific focal extender (Barlow lens) has an exceptionally flat field and essentially no color fringing with all telescope types and focal ratios . . .
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