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  1. 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 . . .
  2. Explore Scientific 2X Barlow for 2" eyepieces, with 1.25" adapter

    $269.99
    This new four-element 2" 2x Explore Scientific focal extender (Barlow lens) has a 1.25" eyepiece adapter so you can use both 2" and 1.25" eyepieces in your 2" focuser . . .
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