Save up to $300 on ZWO AM5 and AM3 mount packages while supplies last!Save up to $300 on ZWO AM5 and AM3 mount packages while supplies last!

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Filters for Telescopes & Astrophotography

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  1. New
    Celestron EclipSMART Solar Eclipse Glasses / Shades # 44400
    Celestron EclipSMART Solar Eclipse Glasses / Shades # 44400 - Pack of 10
    Our Price: $27.95
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  2. New
    Celestron EclipSMART Solar Eclipse Glasses / Shades # 44400
    Celestron EclipSMART Solar Eclipse Glasses / Shades # 44400 - Pack of 50
    Our Price: $94.95
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  3. New
    Celestron EclipSMART Solar Eclipse Glasses / Shades # 44400
    Celestron EclipSMART Solar Eclipse Glasses / Shades # 44400 - Pack of 100
    Our Price: $179.95
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  4. Celestron EclipSMART Solar Eclipse Glasses / Shades # 44400
    Celestron EclipSMART Solar Eclipse Glasses / Shades # 44400 - Pack of 1000
    Our Price: $1,400.00
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  5. ZWO Premium LRGB Imaging Filter Set - 36mm Round Unmounted # LRGB-36
    ZWO Premium LRGB Imaging Filter Set - 36mm Round Unmounted # LRGB-36
    Our Price: $199.00
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  6. Thousand Oaks Optical SolarLite Solar Filter Film (ND 5) - 10" (254mm) Square Piece
    Thousand Oaks Optical SolarLite Solar Filter Film (ND 5) - 10" (254mm) Square Piece
    Our Price: $31.99
    Out of Stock
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  7. GSO IR Blocking / IR Cut Filter - 1.25"
    GSO IR Blocking / IR Cut Filter - 1.25"
    Our Price: $23.95
    Out of Stock
    Free US Shipping Over $25
  8. ZWO Narrowband SHO (S-II, H-a & O-III) Imaging Filter Set - 1.25" # NBSET125
    ZWO Narrowband SHO (S-II, H-a & O-III) Imaging Filter Set - 1.25" # NBSET125
    Our Price: $369.00
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  9. Optolong L-Ultimate Dual Bandpass Light Pollution Reduction Imaging Filter - 2"
    Optolong L-Ultimate Dual Bandpass Light Pollution Reduction Imaging Filter - 2"
    Our Price: $389.00
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  10. Optolong UV / IR Cut Filter
    Optolong UV / IR Cut Filter - 1.25"
    Our Price: $44.00
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  11. GSO 1.25" Color / Planetary Filter - #47 Violet
    GSO 1.25" Color / Planetary Filter - #47 Violet
    Our Price: $11.95
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  12. GSO 1.25" Color / Planetary Filter - #23A Light Red
    GSO 1.25" Color / Planetary Filter - #23A Light Red
    Our Price: $11.95
    Out of Stock
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  13. Antlia 3nm Narrowband H-Alpha (Ha) Pro Imaging Filter - 2" Mounted
    Antlia 3nm Narrowband H-Alpha (Ha) Pro Imaging Filter - 2" Mounted
    Our Price: $395.00
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  14. Antlia SHO (S-II, H-a & O-III) Narrowband 3nm Pro Imaging Filter Set of 3 Filters - 2" Mounted
    Antlia SHO (S-II, H-a & O-III) Narrowband 3nm Pro Imaging Filter Set of 3 Filters - 2" Mounted
    Our Price: $1,185.00
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  15. Antlia LRGB-V & SHO (S-II, H-a & O-III) Narrowband 3nm Pro Imaging Filter Set of 7 Filters - 2" Round Mounted
    Antlia LRGB-V & SHO (S-II, H-a & O-III) Narrowband 3nm Pro Imaging Filter Set of 7 Filters -...
    Our Price: $1,655.00
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  16. Closeout
    Lumicon Oxygen III Filter - 1.25" # LF3040
    Lumicon Oxygen III Filter - 1.25" # LF3040
    Sale Price: $124.20 Our Price: $138.00
    Out of Stock
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  17. Thousand Oaks Optical SolarLite Solar Filter Film (ND 5) - 9" (229mm) Square Piece
    Thousand Oaks Optical SolarLite Solar Filter Film (ND 5) - 9" (229mm) Square Piece
    Our Price: $28.99
    Out of Stock
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  18. Celestron Telescope Eyepiece and Filter Set - 1.25" # 94303
    Celestron Telescope Eyepiece and Filter Set - 1.25" # 94303
    Our Price: $229.95
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  19. ZWO Narrowband SHO (S-II, H-a & O-III) Imaging Filter Set - 36mm Round Unmounted # NBSET36
    ZWO Narrowband SHO (S-II, H-a & O-III) Imaging Filter Set - 36mm Round Unmounted # NBSET36
    Our Price: $479.00
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  20. GSO 1.25" Color / Planetary Filter - #56 Green
    GSO 1.25" Color / Planetary Filter - #56 Green
    Our Price: $11.95
    Out of Stock
    Free US Shipping Over $25
  21. Baader Semi-APO Filter - 2" # FSAPO-2 2458399
    Baader Semi-APO Filter - 2" # FSAPO-2 2458399
    Our Price: $169.00
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  22. Optolong L-eNhance Dual Bandpass Light Pollution Reduction Imaging Filter
    Optolong L-eNhance Dual Bandpass Light Pollution Reduction Imaging Filter - 1.25"
    Our Price: $179.00
    In Stock
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  23. Celestron Telescope UHC/LPR Filter - 1.25" # 94123
    Celestron Telescope UHC/LPR Filter - 1.25" # 94123
    Our Price: $99.95
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  24. Baader Fringe-Killer Filter - 2" # FFK-2 2458375
    Baader Fringe-Killer Filter - 2" # FFK-2 2458375
    Our Price: $138.00
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