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(877) 623-4021
Cart
Telescopes
Refractors
Refractors under 127mm
Refractors 127-138mm
Refractors over 139mm
Reflectors
Rowe-Ackermann Schmidt Astrograph
Binoculars
Binocular Accessories
Binoculars Under 100mm
Binoculars 100mm and larger
Binoculars
Binoculars 100mm and larger
Binoculars Under 100mm
Binocular Mount Accessories
Mounts
Mount Accessories
Dovetail Plates
Dovetail Adapters
Dovetail Radius Blocks
Dovetail Rings
Dovetail Weights
German Equatorial Mounts
Harmonic Drive
Fork Mounts
Tripod
Piers and Observatory Mounts
Cameras
Monochrome Cameras
Guide Cameras
One Shot Color (OSC)
Filters
Astrodon Filters
Chroma Filters
Nebula & Specialty Filters
Narrowband Filters
Visual Filters
Color Filters
Neutral Density Filters
Polarizing Filters
Accessories
Astrophotography Books
ATM & Dobsonian
Amateur Telescope Making
Bahtinov & Carey Focus Masks
Carrying Cases
Collimation Tools
Diagonals
Dovetail Plates
Off Axis Guiders
Astrodon Guiders
Lumicon Easy Guiders
Eyepieces
Finder Systems
Focusers & Motofocusers
Gift Card
Moisture & Dust Control, Lens Care
Optical Adapters
Observing Accessories
Software & Manuals
Solar Viewing
Wheeley Bars
Shop By Brand
Astrodon
Farpoint
Lumicon
JMI
Optic Wave Labs
APM
Lunt Engineering
Celestron
QSI
QHY
SBIG
SkyWatcher
Software Bisque
Starlight Instruments
Takahashi
Tele Vue
ZWO ASI
Used
Used Telescopes
Used Cameras
Used Filters
Used Eyepieces
Used Accessories
Astrodon 2nd Quality Filters
Closeouts
Sell Your Used Gear
Scratch and Dent
Services
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Filters for Photography
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Filters for Photography
Doug Williams
March 6, 2018
January 26, 2021
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Astrodon Narrowband Astrophotography Filters – OIII 3nm
$
564.00
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2,495.00
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Astrodon Narrowband Astrophotography Filters – OIII 3nm
Doug Williams
March 6, 2018
January 26, 2021
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-15%
Lumicon 2 Inch Deep Sky Filter (2nd Quality)
$
200.00
$
170.00
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Lumicon 2 Inch Deep Sky Filter (2nd Quality)
Ben Fields
September 23, 2020
January 11, 2021
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Lumicon 2 Inch Deep Sky Filter
$
200.00
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Lumicon 2 Inch Deep Sky Filter
Doug Williams
January 20, 2018
January 16, 2021
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