- 36mm ring mount for Photometric FiltersUnlike other Astrodon filters, the Photometric filters (Johnson-Cousins and Sloan) do not come as 36mm...
- Video of Astrodon Luminance filter blocking IR light from TV remoteHere is something you can try at home: Any cellphone camera or DSLR camera will...
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Most Astrodon Filters in stock!I just (July 31, 2018) finished updating the inventory numbers on the website and the... -
Should I get Astrodon E-Series or I-Series LRGB filters?Astrodon LRGB Gen2 I-Series Tru-Balance Filter Sets A common question: Should I get E-Series or... -
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2″ Lumicon Econoline OIII Filter Now $50We have halved the price of the Lumicon 2 inch Econoline OIII filter! Now only... - What is the difference between Astrodon 1.25″ filters and Astrodon 31mm filters?This is a common source of confusion. So...here we go. The glass portion of the...
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Orion Ultrablock vs Lumicon UHC transmission curvesLumicon UHC comes out on top. We periodically test samples of our competitors to keep...
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- ATM & Dobsonian
- Bahtinov & Carey Focus Masks
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- Collimation Tools
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- Dovetail Plates
- Off Axis Guiders
- Eyepieces
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- Telescopes
- Mounts
- Cameras
- Filters
- Accessories
- Astrophotography Books
- ATM & Dobsonian
- Bahtinov & Carey Focus Masks
- Carrying Cases
- Collimation Tools
- Diagonals
- Dovetail Plates
- Off Axis Guiders
- Eyepieces
- Finder Systems
- Focusers & Motofocusers
- Gift Card
- Moisture & Dust Control, Lens Care
- Optical Adapters
- Observing Accessories
- Solar Viewing
- Wheeley Bars
- Shop By Brand
- Used
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