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Coronado Blocking Filters for SolarMax Front Filters

Coronado 5mm Blocking Filter BF5
Coronado 10mm Blocking Filter BF10
Coronado 15mm Blocking Filter BF15
Coronado 30mm Blocking Filter BF30
Coronado 5mm Blocking Filter BF5
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Coronado 5mm Blocking Filter BF5
Coronado 10mm Blocking Filter BF10
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Coronado 10mm Blocking Filter BF10
Coronado 15mm Blocking Filter BF15
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Coronado 15mm Blocking Filter BF15
Coronado 30mm Blocking Filter BF30
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Coronado 30mm Blocking Filter BF30

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Questions & Answers
What are the advantages or disadvantages of 10, 15 and 30 Mm blocking filters used with a 90Mm Coronado telescope? Expert Answer

The advantage is that you protect your eyes from damage from viewing the sun, but the disadvantage is that the larger the filter (in mm), the more light and clarity you lose. The filter size you need depends on the focal length of the eyepiece you are using.

by Ethan C., Gear Expert, March 7, 2019
View All Q&A You Have a Question? Ask!
Customer Reviews
Helpful Positive Review Excellent Filter by Legacy Reviewer, Verified Owner, August 29, 2012
I purchased this blocking filter to upgrade my SM60-BF10. I used every size blocking filter but I think BF15 has best cost performance. The function and performance are VERY excellent.I am satisfied very much.
1/1 found this helpful
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Product Discontinued by Manufacturer

Coronado Blocking Filters for SolarMax Front Filters has been discontinued by Coronado and is no longer available. Our product experts have helped us select these available replacements below.You can also explore other items in the Telescope Accessories yourself to try and find the perfect replacement for you!

Product Info for Coronado Blocking Filters for SolarMax Front Filters

Coronado Blocking Filters for SolarMax Front Filters are the second element in any Coronado H-Alpha Filter system, it is just as crucial to your safety and the system's performance as the front element. Use the following guidelines for selecting which Blocking Filter you need based on the focal length of the Telescope Accessories being used. If you are switching to a longer focal length Telescope Accessories you can purchase blocking filters separately. There is no advantage for visual use in using a larger blocking filter than required based on the focal length. The Coronado Blocking Filter is not a stand alone filter. It is an integral part of the Coronado design and cannot be used without a Coronado H-Alpha SolarMax Series Filter on the front of the optical system.image

Package Contents:

  • Coronado Blocking Filters for SolarMax Front Filters

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Coronado Blocking Filters for SolarMax Front Filters Unavailable & Discontinued Models

List of Unorderable Models

Coronado 5mm Blocking Filter BF5 , MPN: BF5 , UPC: 709942995497 , Code: CO-TA-BlockFltr-BF5
Coronado 10mm Blocking Filter BF10 , MPN: BF10 , UPC: 709942995503 , Code: CO-TA-BlockFltr-BF10
Coronado 15mm Blocking Filter - 1.25in Straight Through - BF15ST , MPN: BF15ST , UPC: 709942995527 , Code: CO-TA-BlockFltr-BF15ST
Coronado 15mm Blocking Filter BF15 , MPN: BF15 , UPC: 709942995510 , Code: CO-TA-BlockFltr-BF15
Coronado 30mm Blocking Filter BF30 , MPN: BF30 , UPC: 709942995534 , Code: CO-TA-BlockFltr-BF30
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