Celestron
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Celestron Luminos 2.5x 4-element Barlow for 2" and 1.25" eyepieces
$149.95This 2.5x Celestron Luminos four-lens fully multicoated Barlow provides superb field flatness and minimal chromatic aberration with both 2" and 1.25" eyepieces . . . -
Celestron X-Cel LX 2X 3-element Barlow for 1.25" eyepieces
$109.95This 2x Celestron X-Cel LX three-lens air-spaced fully multicoated 1.25" Barlow performs a lot more expensively than it costs . . . -
Celestron X-Cel LX 3x 3-element Barlow for 1.25" eyepieces
$149.95The high-end performance of this 3x 1.25" Celestron X-Cel LX three-lens air-spaced fully multicoated Barlow may surprise you at its very reasonable price . . .