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Coronado 40 mm Double Stack Adapter Ring

Coronado 40 mm Double Stack Adapter Ring - AP185

  • This Coronado Adapter Ring is required to double stack on an external primary Etalon for SM40.
  • Coronado's 40 mm Double Stack Adapter Ring is black in color.
  • The telescope and double stacking filters are sold separately.
  • This adapter helps with double stacking which reduces 0.7 angstrom to 0.5 angstrom.

Coronado 2x 1.25" CEMAX H-Alpha Contrast Enhanced Barlow - BAR

  • This Barlow is meant to work with Coronado's CEMAX 12mm, 18mm and 25mm focal length eyepieces.
  • Using this Barlow will increase the magnification Coronado CEMAX H-alpha eyepieces by two.
  • The coatings of this Coronado Barlow are optimized to enhance contrast and minimize glare.
  • A cap is included with this silver and gold Barlow.
$79.99 $74.95