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Coronado BF-10 Blocking Filter

B&H # COBF10 MFR # BF10
Coronado BF-10 Blocking Filter

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Ship Time: 7-14 business days 
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Not eligible for free Expedited Shipping

Product Highlights

  • 1.25" 90° Diagonal
  • For Telescopes ≤1000mm
  • Needs a SolarMax Solar Viewing Filter
  • Made in the USA

You Pay: $499.00

What item is right for you?

Ask our Experts!

The BF-10 Blocking Filter from Coronado is the secondary interference filter in a Coronado H-Alpha solar viewing system. Blocking filters are not stand-alone devices; they must be used in conjunction with a SolarMax filter. In a solar viewing system, the blocking filter is just as crucial to the viewer's safety and the system's performance as the front element. This 10mm blocking filter, the BF-10, is compatible with telescopes that have a focal length that is equal to or less than 1000mm.

Note: SolarMax filters are sold in kits that include a blocking filter. This blocking filter offered here is intended for viewers who have two different focal length telescopes that they intend to use with their SolarMax system.

Must be used with a SolarMax filter
1.25" right angle diagonal, image size: 9.0 mm
For telescopes with a focal length equal to or less than 1000 mm
Coronado BF-10 Blocking Filter
  • Limited 5 Year Warranty
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    Special Order ?
    This is a Special order item. Est. arrival at B&H is 7-14 business days (subject to availability). Your order will be charged at time of shipment. Item is non-cancelable and non-returnable.
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