Explore Scientific Coma Corrector
Item #54111
$379.99
Explore Scientific 2" HR Coma Corrector for Newtonians
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This item is on backorder and expected by 10/13/2022.
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  • More Info
    • 2" HR Coma Corrector
    • for Newtonians

    After hours at the eyepiece, you finally get to view the fruits of your astrophotography labors. The stars in the center of the field pop like brilliant precise points of light. But as you survey the image, you notice the stars at the edge have taken on an unnatural comet-like shape. Your long night has been marred by coma. Coma is a common plague of the Newtonian reflector design, and its annoying presence at the outskirts of an image can be a bane for astronomers of all levels.

    Explore Scientific's HR Variable Coma Corrector is a high-performance optical corrector designed by world famous optical designer Harrie Rutten, and it will help you minimize or even eliminate image aberrations caused by this off-axis optical phenomenon even in fast Newtonians. This 2-inch coma corrector with is EMC Coated to reduce internal reflections and its spacer with markings allow you to use the device on almost any Newtonian telescope with a parabolic primary mirror, even fast Newtonians such as the BRESSER N20839 f/3.9 Photo Newtonian. Tightly secured by three thumbscrews, this accessory comes with two adapters (.75" and 1") to secure to your T adapter and a protective cap.

    Warranty

    This product is serviced and supported by its manufacturer according to the terms and conditions included in the packaged product. Orion's limited warranty does not apply. Please contact the manufacturer directly for technical support.

    Warning

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

  • Specs
    • Coatings:
      Multi-coated
    • Mounting:
      2" nozzle or t-thread
    • Weight (oz.):
      22
    • Dimensions:
      5.8 in. x 2.7 in.
    • Additional included accessories:
    • Other features:
    • Warranty:
      One year
  • Important Shipping Information

    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.

    A per-item shipping charge (in addition to the standard shipping and handling charge) applies to this product. This charge varies based on the shipping method.

    Standard Delivery: $5.00

    SHIPPING RESTRICTIONS APPLY FOR THIS PRODUCT

    This product is available to ship Standard delivery within the 50 US states. Delivery is not available to APO/DPO/FPO addresses, US territories/protectorates or Canada. 3 Day, 2nd Day and Next Day delivery is not available.