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Orion Telescopes
Coronado 1.25" CEMAX 2x Barlow Lens
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In Stock
  • Fully multi-coated optical design to maximize contrast and reduce glare, especially at H-alpha wavelengths
  • Doubles the magnification of any inserted eyepiece, essentially doubling the number of eyepieces you own!
  • Compact design keeps the length of the body quite short
  • 1.25" barrel to fit into any standard 1.25" focuser, or 2" focuser with step-down adapter
  • Also works well for night astronomy viewing, as a general purpose 2x Barlow for moon and planetary detail

Learn more
Item #  55737
Mfg Model #  BAR

The Coronado CEMAX 2x Barlow Lens is specifically designed to maximize contrast and minimize glare at the H-alpha wavelengths when viewing the sun through a specialized H-alpha telescope. But this Barlow also is universal and will work equally well at night when you want a boost to the magnification of the moon or planets. Simple insert your eyepiece into the CEMAX Barlow, and you instantly get 2x the native magnification of the eyepiece! Also works for astrophotography if you have a camera with a 1.25" nosepiece, effectively doubling the focal length of the telescope when inserted. The compact nature of this Barlow (using short focus throw lenses) allows it to be about half the total length of a standard 2x Barlow. This makes it easy to store away in your equipment case, and also keeps the eyepiece from sitting unnecessarily high above the focuser or diagonal it is inserted into.

Fully multi-coated optics for efficient light transmission, threaded for standard 1.25" filters on the front end, and utilizes a 1.25" body to slip into any standard 1.25" focuser or diagonal. Can also work on any 2" focuser or diagonal if it equipped with a 2" to 1.25" adapter.

NOTE: this Barlow is NOT a solar filter by itself, and for safe solar observing MUST be used in conjunction with a Coronado Ha Solar telescope or telescope with a Coronado filter set appropriately and safely mounted.


Limited Warranty against defects in materials or workmanship for two years from date of purchase. This warranty is provided by Meade for the benefit of the original retail purchaser only. For complete warranty details contact Meade at 800-626-3233.


Please note this product was not designed or intended by the manufacturer for use by a child 12 years of age or younger.

  • User level
  • Barrel size
  • Magnification factor
  • Coatings
    Fully multi-coated
  • Filter threads
  • Compression ring
  • Additional included accessories
  • Other features
  • Warranty
    Two year

Orders received by 1pm Eastern Standard Time for in-stock items ship the same business day. Order received after noon will ship the next business day. When an item is not in-stock we will ship it as soon as it becomes available. Typically in-stock items will ship first and backordered items will follow as soon as they are available. You have the option in check out to request that your order ship complete, if you'd prefer.


This product is available to ship Standard delivery US except for delivery to Alaska and Hawaii. Delivery is available to APO/DPO/FPO addresses. Delivery is not available to US territories/protectorates. Delivery is available to Canada.

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