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Orion Telescopes
Advanced
Coronado BF-5 5mm Solar Blocking Filter
$429.99
 
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In Stock
  • Hydrogen-alpha blocking filter for Coronado primary etalon filters
  • Secondary interference filter for full disc image of the Sun for telescopes up to 500mm focal length
  • 1.25" diameter front nozzle, and accepts 1.25" eyepiece and camera nosepieces
  • 5mm clear aperture
  • MUST be used in conjunction with a front etalon filter - cannot be used alone


Learn more
Item #  55743
Mfg Model #  BF5

The Coronado BF5 5mm 1.25" right angle (diagonal) type Hydrogen-alpha blocking filter is designed to sit behind a SolarMax etalon to provide beautiful H-alpha views of the Sun. This blocking filter is the second element in any Coronado H-alpha system, and is just as crucial to your safety and the system's performance as the primary SolarMax etalon filter. Note this blocking filter CANNOT be used without a SolarMax etalon in front of the telescope front aperture. This secondary interference filter provides a full disc image of the Sun for telescopes up to 500mm focal length. The BF5 is named because of the 5mm clear aperture window that passes the hydrogen-alpha light to the eyepiece or camera sensor.

Designed to be used with telescopes with a 1.25" focuser opening, and accepts 1.25" eyepieces and camera nosepieces on top. Can be used on a 2" focuser with a step down adapter, but for a larger clear aperture and native 2" front nosepiece, consider the #624015 SolarMax III BF10 version.

Designed and Manufactured in North America.

Warranty

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.

Warning

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
    Advanced
  • Additional included accessories
  • Other features
  • Warranty
    Two year
  • T-max Tuner
    Yes

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.

SHIPPING RESTRICTIONS APPLY FOR THIS PRODUCT

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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