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We are not accepting orders at this time. Online ordering will resume Monday, May 28th at 9:45PM EDT. Our SuperStore and offices are currently closed and will reopen on Tuesday, May 29th at 9:00AM EDT.
We apologize for any inconvenience and appreciate your patronage.
Coronado BF-5 Blocking Filter
- Price: $329.00
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Usually ships in 7-14 days
Availability Details
CloseThis is a special order item and is non-cancelable and non-returnable. Est. arrival at B&H is 7-14 days (subject to availability). Your order will be charged at time of shipment.
International orders*
For international orders, credit cards will be charged at time you place your order.
The BF-5 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 5mm blocking filter, the BF-5, is compatible with telescopes that have a focal length that is equal to or less than 500mm.
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: 4.6 mm
- For telescopes with a focal length equal to or less than 500 mm
What's in the Box
- Limited 5 Year Warranty
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