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Telescopes
Best of Telescopes
Best Telescopes for Kids Best Telescopes for Beginners Best Telescopes for Astrophotography Best Telescopes for Viewing Planets Best Telescopes for Eclipses Best Telescopes Under $500 All Telescopes Telescopes on Sale
By Type
Celestron NexStar Celestron StarSense Explorer Refractors Reflectors Dobsonians Scmitd Cassegrain - SCT GoTo and Computerized Table Top Spotting Scopes Guide Scopes Solar Telescopes Optical Tube Assembly - OTA Astrographs All Telescopes
By Brand
Askar Celestron Explore Scientific Meade Orion SharpStar Sky-Watcher Tele Vue Unistellar William Optics All Telescopes
Start Here
Buying Your First Telescope So You've Got a Telescope: Now What?
Astrophotography
Cameras
Deep Sky Planetary and Lunar Guiding Cameras Solar All Cameras
Filters
LRGB Filters SHO Filters 3nm Filters Light Pollution Dual Band UV/IR Cut All Filters
Accessories
Auto Focusers and EAF Filter Wheels Filter Drawers Focusing Masks Off Axis Guiders - OAG Smartphone Adapters
By Brand
ZWO Optolong Antlia QHY Orion Baader Planetarium Sharpstar Astrophotography William Optics Astrographs All Astro PrimaLuceLab
Start Here
Astrophotography for Beginners How to Use a Star Adventurer Tracker How to Shoot the Moon
Solar Photography
Daystar Instruments - Quark Meade PST, Coronado Lunt
Mounts and Tripods
By Type
Alt Azimuth Equatorial GoTo and Computerized Harmonic Manual Star Trackers All Mounts and Tripods
By Brand
iOptron Sky-Watcher Celestron Tele Vue Explore Scientific All Mounts and Tripods
Accessories
Counter Weights Mounting Hardware Hand Controllers Mini Piers Polar Scopes Vibration Pads GPS and Wifi Modules All Accessories
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Zooms 0-5mm 6-10mm 11-15mm 16-20mm 21mm and Up All Eyepieces
By Type
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All Accessories Essential Astronomy Accessories
STEM
Microscopes Rock Tumbling STEM Toys CMY Cubes
Learning Center
Helpful Articles
Astrophotography for Beginners Series Choosing the Best Beginner Telescope Upgrading Your Telescope Eyepieces Is the Celestron NexStar the Best Telescope?
Videos
Nexstar Videos
Astrophotography
Step 1: Using the Star Adventurer Tracker Step 2: How to Shoot the Moon Step 3: Choosing Gear for Deep-Sky Imaging Step 4: Shooting Deep-Sky Images
Buying Your First Telescope
Part One: What’s the Best Telescope? Part Two: Making the Choice Part Three: Our Recommendations (2022)
Using Your First Telescope
Part One: Tips for Happy Stargazing Part Two: Aligning a GoTo Scope
Birding
How to Buy the Best Binoculars for Birding Get the Most Out of Your Binoculars Bird Watching 101: Your Essential Guide
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Baader Planetarium Celestron Coronado Explore Scientific iOptron Kendrick Astro Lunt Meade Orion Sky-Watcher Tele Vue Unistellar
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Home / Astrophotography Filters

Astrophotography Filters

Special Order
iOptron
iOptron Green Moon Filter (TFE100)
No reviews
$17.95

A moon filter reduces irradiation, glare, and excess image brightness in lunar observing. It also improves the contrast between lunar albedo features. This green moon filter will screw directly into the barrel of most 1.25"...

In Stock
Optolong
Optolong CF (Clear Focusing) Broadband Filter 1.25"/2" Mounted (OPT-CF-125/OPT-CF-2)
No reviews
from $30.00

Optolong Clear focusing filter is designed to highly pass the visible spectral region 420-680nm at 98.5% transmission. Main Use Use of astrophotography filters, especially narrowband filters, often results in dim images which can be difficult...

In Stock
Optolong
Optolong CF (Clear Focusing) Broadband Filter 2" Mounted (OPT-CF-2)
$40.00

The Optolong Clear Focusing Filter is designed to pass the visible spectral region (420nm-680nm) with 98.5% transmission Use of astrophotography filters, especially narrowband filters, often results in dim images which can be difficult to focus....

In Stock
Optolong
Optolong UV/IR Cut 1.25" Filter Mounted (OPT-UVIR-1.25)
1 review
$49.00

Optolong UV/IR Cut filter is designed for ultraviolet and infrared wavelength blocking to improve sharpness of the image as most of the optics are designed for the visible spectrum, because it’s very difficult to create...

In Stock
Optolong
Optolong CLS (City Light Suppression) Broadband Filter 1.25" Mounted (OPT-CLS-125)
$59.00

The CLS (City Light Suppression) broadband filter is designed to improve the visibility of various deep sky objects. By selectively reducing the transmission of wavelengths of light pollutants, specifically those produced by artificial lightings including...

In Stock
Sky Instruments
Antares 1.25" Color Filters, Set of 4 (FS2)
4 reviews
$60.95

Filters will add contrast to really bright objects like the moon and planets. To make the details pop, use the ND25 filter for the moon, and contrasting colors for the planets.

In Stock
Optolong
Optolong UHC Light Pollution Filter 1.25" Mounted (OPT-UHC-125)
1 review
$69.00

The UHC (Ultra High Contrast) broadband filter is designed to improve the visibility of various deepsky objects. By selectively reducing the transmission of wavelengths of light pollutants, specifically those produced by artificial lightings including mercury...

In Stock
Optolong
Optolong UV/IR Cut 2" Filter Mounted (OPT-UVIR-2)
$75.00

Optolong UV/IR Cut filter is designed for ultraviolet and infrared wavelength blocking to improve sharpness of the image as most of the optics are designed for the visible spectrum, because it’s very difficult to create...

In Stock
Optolong
Optolong CLS (City Light Suppression) Broadband Filter 2" Mounted (OPT-CLS-2)
$95.00

The CLS (City Light Suppression) broadband filter is designed to improve the visibility of various deep sky objects. By selectively reducing the transmission of wavelengths of light pollutants, specifically those produced by artificial lightings including...

In Stock
Optolong
Optolong UHC Light Pollution Filter 2" Mounted (OPT-UHC-2)
$99.00

The UHC (Ultra High Contrast) broadband filter is designed to improve the visibility of various deepsky objects. By selectively reducing the transmission of wavelengths of light pollutants, specifically those produced by artificial lightings including mercury...

In Stock
Optolong
Optolong IR Pass685 Planetary Filter 1.25" Mounted (OPT-IR685-125)
$105.00

Optolong IR Pass 685nm filter is designed to block wavelengths below 670nm and can be used in IR-LRGB imaging to produce a sharper luminance image for the best planetary contrast as atmospheric seeing and distortion...

ZWO
ZWO 1.25" Duo-Band Filter (ZWO-DB1.25)
2 reviews
$107.00

ZWO Duo-Band Filter is a dual narrowband filter primarily aimed at complementing our range of colour ASI cameras. The Duo-Band filter is aimed at the astronomer who may already own a One Shot Colour (OSC)...

In Stock
Optolong
Optolong Narrowband H-beta Filter 1.25" Mounted (OPT-H-BETA-125)
$115.00

Opotlong narrowband H-beta filter is designed for nebula observation allowing 12nm bandwidth of light centered on a wavelength of 486nm through, and reducing the transmission of certain wavelengths of light, specifically those produced by artificial...

In Stock
Astronomik
Astronomik 1.25"/2" L-3 Luminance UV/IR Block Filters (ASK-UV-IR-BLOCK)
No reviews
from $119.95

The Luminance channel is probably the most important for a great final image! You want as much signal as possible so the filter should have the highest transmission possible with a wide spectral bandpass. This...

In Stock
Baader Planetarium
Baader Planetarium Contrast Booster Filter 1.25" & 2" (2458360/2458365)
No reviews
from $119.99

Discover your telescope anew – with the Baader Contrast Booster: Planeoptically Polished and Phantom Group Coated A unique filter for many different astronomical tasks – incomparable in acuity to combinations of generic colour filters, made...

ZWO
ZWO 1.25" Methane Band CH4 Filter (ZWO-CH4)
$134.00

The ZWO Methane band (CH4) filter is a special filter for photographical use. Its FWHM is 20nm which is suitable for most IR sensitive colour or mono cameras. It can reveal the detail of the...

Special Order
Astronomik
Astronomik 1.25"/2" Ultra-High Contrast Filters (ASK-UHC)
No reviews
from $149.95

You will enjoy using your Astronomik UHC filter because you will see more stars and more details in deep-sky-objects compared to using filters from all other manufacturers. The Astronomik UHC (Ultra High Contrast) filter allows...

In Stock
Antlia
Antlia 1.25" H-Beta and OIII Visual and Photography Filter (ANT-HB-OIII-125)
No reviews
$149.99

Antlia HB-OIII filter is engineered specifically for night visual nebulae observation at a high contrast and Deep-sky astrophotography. Its transmission is 90% or greater at critical wavelengths (OIII 500.7nm, OIII 495.9nm, and H-Beta 486.1nm). You’ll...

In Stock
Optolong
Optolong Narrowband H-beta Filter 2" Mounted (OPT-H-BETA-2)
$169.00

Opotlong narrowband H-beta filter is designed for nebula observation allowing 12nm bandwidth of light centered on a wavelength of 486nm through, and reducing the transmission of certain wavelengths of light, specifically those produced by artificial...

Special Order
Chroma Technology
Chroma Technology Clear Filters (27044)
No reviews
from $170.00

Clear Filter No UV/IR blocking. Specifications Clear Filter Transmission Curve Note: All transmission and blocking (OD) data are actual, measured spectra of representative production lots. Spectra varies slightly from lot to lot. Optical density values...

ZWO
ZWO H-alpha (Ha) Narrowband 7nm Filter 1.25" (ZWO-HA7NM1.25)
$174.00

Narrowband filter does not eliminate the effects of light pollution or increase the object’s brightness. In many cases, they increase the contrast between nebula and night sky, not brightening the nebula. The ZWO H-Alpha filter...

ZWO
ZWO OIII Narrowband 7nm Filter 1.25" (ZWO-OIII7NM1.25)
$174.00

Narrowband filter does not eliminate the effects of light pollution or increase the object’s brightness. In many cases, they increase the contrast between nebula and night sky, not brightening the nebula. The ZWO narrowband O-III...

ZWO
ZWO 1.25" SII 7nm Filter (ZWO-SII7NM1.25)
1 review
$174.00

Narrowband filter does not eliminate the effects of light pollution or increase the object’s brightness. In many cases, they increase the contrast between nebula and night sky, not brightening the nebula. The ZWO narrowband S-II...

In Stock
Optolong
Optolong Hydrogen-Alpha 7nm Narrowband Filter 1.25" Mounted (OPT-H-ALPHA-7NM-125)
$175.00

Optolong improved version of Hydrogen-Alpha 7nm filter is the popular narrowband filter allowing 7nm bandwidth of light centered on a wavelength of 656nm through, and reducing the transmission of certain wavelengths of light, specifically those...

In Stock
Optolong
Optolong OIII 6.5nm Narrowband Filter 1.25" Mounted (OPT-OIII-65NM-125)
$195.00

Improved Narrowband OIII 6.5nm filter is designed for nebula observation allowing 6.5nm bandwidth of light centered on a wavelength of 500nm through, which corresponds to OIII emission lines, and reducing the transmission of certain wavelengths...

In Stock
Optolong
Optolong SII 6.5nm Narrowband Filter 1.25" Mounted (OPT-SII-65NM-1.25)
$195.00

Optolong improved narrowband SII6.5nm filter (Sulfur II for CCD) is designed for nebula observation allowing 6.5nm bandwidth of light centered on a wavelength of 672nm through, and reducing the transmission of certain wavelengths of light,...

In Stock
Optolong
Optolong L-Pro Light Pollution Suppression Filter 1.25" Mounted (OPT-L-PRO-125)
$199.00

Optolong L-Pro (L-Professional) filter is designed to improve the visibility of various deepsky objects. By selectively reducing the transmission of wavelengths of light pollutants, specifically those produced by artificial lightings including mercury vapor lamps, both...

In Stock
ZWO
ZWO LRGB 1.25"/2" Mounted Filters (ZWO-LRGB)
1 review
from $200.00

These new ZWO LRGB Filters have good performance in transmission, also it has good coating, good colour separation. They are designed to approximately equalize the flux of CMOS camera sensor. Better transmission, Better coating, Better...

Special Order
ZWO
ZWO 31mm Ha 7nm Unmounted Filter (ZWO-HA7NMD31)
$201.00

Narrowband filter do not eliminate the effects of light pollution or increase the object’s brightness. In many cases, they increase the contrast between nebula and night sky, not brightening the nebula. The ZWO H-Alpha filter...

Special Order
ZWO
ZWO 31mm OIII 7nm Unmounted Filter (ZWO-OIII7NMD31)
$201.00

Narrowband filter do not eliminate the effects of light pollution or increase the object’s brightness. In many cases, they increase the contrast between nebula and night sky, not brightening the nebula. The ZWO narrowband O-III...

Special Order
ZWO
ZWO 31mm SII 7nm Filter Unmounted (ZWO-SII7NMD31)
$201.00

Narrowband filter do not eliminate the effects of light pollution or increase the object’s brightness. In many cases, they increase the contrast between nebula and night sky, not brightening the nebula. The ZWO narrowband S-II...

ZWO
ZWO 2" Duo-Band Filter (ZWO-DB2)
1 review
$201.00

ZWO Duo-Band Filter is a dual narrowband filter primarily aimed at complementing our range of colour ASI cameras. The Duo-Band filter is aimed at the astronomer who may already own a One Shot Colour (OSC)...

Special Order
Chroma Technology
Chroma Technology L/R/G/B Filters (27040/27041/27042/27043)
No reviews
from $205.00

Luminance, Red, Green, and Blue astronomy filters Also available as a Complete Set Specifications Luminance (L) Transmission Curve Red (R) Transmission Curve Green (G) Transmission Curve Blue (B) Transmission Curve LRGB Composite Transmission Curve Note:...

Special Order
Astronomik
Astronomik 1.25"/2" Narrowband Emission Line SII-CCD Filters w/ 12nm FWHM & MFR Coating (ASK-SII-12NM-CCD)
No reviews
from $209.95

Due to the combination of the narrow bandwidth of 12nm and the high transmission of typically 96% the filter gives you an contrast boost, as all unwanted light from other wavelengths than 672nm is blocked...

Special Order
Astronomik
Astronomik 1.25"/2" Narrowband Emission Line OIII-CCD Filters w/ 12nm FWHM & MFR Coating (ASK-OIII-12NM-CCD)
No reviews
from $209.95

Due to the combination of the narrow bandwidth of 12nm and the high transmission of typically 96% the filter gives you an contrast boost, as all unwanted light from other wavelengths than 501nm is blocked...

Special Order
Astronomik
Astronomik 1.25"/2" Narrowband Emission Line H-Alpha-CCD Filters w/ 12nm FWHM & MFR Coating (ASK-HALPHA-12NM-CCD)
No reviews
from $209.95

Due to the combination of the narrow bandwidth of 12nm and the high transmission of typically 96% the filter gives you an contrast boost, as all unwanted light from other wavelengths than 656nm is blocked...

In Stock
ZWO
ZWO 36mm Ha 7nm Unmounted Filter (ZWO-HA7NMD36)
1 review
$228.00

Narrowband filter do not eliminate the effects of light pollution or increase the object’s brightness. In many cases, they increase the contrast between nebula and night sky, not brightening the nebula. The ZWO H-Alpha filter...

ZWO
ZWO LRGB 31mm/36mm Unmounted Filters (ZWO-LRGB31/ZWO-LRGB36)
from $228.00

The ZWO LRGB filters have better transmission, better coating, and better colour separation.

In Stock
ZWO
ZWO 36mm OIII 7nm Unmounted Filter (ZWO-OIII7NMD36)
$228.00

Narrowband filter do not eliminate the effects of light pollution or increase the object’s brightness. In many cases, they increase the contrast between nebula and night sky, not brightening the nebula. The ZWO narrowband O-III...

In Stock
ZWO
ZWO 36mm SII 7nm Unmounted Filter (ZWO-SII7NMD36)
$228.00

Narrowband filter do not eliminate the effects of light pollution or increase the object’s brightness. In many cases, they increase the contrast between nebula and night sky, not brightening the nebula. The ZWO narrowband S-II...

In Stock
Optolong
Optolong H-Alpha 7nm Narrowband Filter 36mm Unmounted (OPT-H-ALPHA-7NM-36MM)
$229.00

Optolong improved version of H-Alpha 7nm filter is the popular narrowband filter allowing 7nm bandwidth of light centered on a wavelength of 656nm through, and reducing the transmission of certain wavelengths of light, specifically those...

In Stock
Optolong
Optolong OIII 6.5nm Narrowband Filter 36mm Unmounted (OPT-OIII-65NM-36MM)
$229.00

Optolong improved extra Narrowband OIII-CCD 6.5nm filter is designed for nebula observation allowing 6.5nm bandwidth of light centered on a wavelength of 500nm through, which corresponds to OIII emission lines, and reducing the transmission of...

In Stock
Optolong
Optolong SII 6.5nm Narrowband Filter 36mm Unmounted (OPT-SII-65NM-36)
$229.00

Optolong improved narrowband SII6.5nm filter (Sulfur II for CCD) is designed for nebula observation allowing 6.5nm bandwidth of light centered on a wavelength of 672nm through, and reducing the transmission of certain wavelengths of light,...

In Stock
Optolong
Optolong L-eNhance Light Pollution Filter 1.25" Mounted (OPT-L-ENHANCE-125)
1 review
$239.00

The relentless spread or urbanization and its associated light pollution have become a growing problem for all amateur astro photographers. The current solutions to the problem can be expensive and might include the purchase of...

Antlia
Antlia Triband RGB Ultra 2" Mounted Filter (TRIBAND-RGB-ULTRA-2)
1 review
$239.95

Filter technology continues to advance and deliver better results in your astrophotography. Antlia has you covered with this premium tri-band filter. You'll be amazed at what it does for your deep sky imaging.

In Stock
Optolong
Optolong 1.25"/2" Venus U Planetary Filter (OPT-VENUS-125/OPT-VENUS-2)
No reviews
from $249.00

Optolong Venus-U filter makes it possible to obtain photographs, CCD or video images in the UV-A (320-400nm) and observe Venus’ cloud structures. Main Use Use with monochrome CCD cameras and you need to remove the...

Optolong
Optolong Hydrogen-Alpha 7nm Narrowband Filter 2" Mounted (OPT-H-ALPHA-7NM-2)
1 review
$255.00

Optolong improved version of Hydrogen-Alpha 7nm filter is the popular narrowband filter allowing 7nm bandwidth of light centered on a wavelength of 656nm through, and reducing the transmission of certain wavelengths of light, specifically those...

In Stock
Optolong
Optolong L-Pro Light Pollution Suppression Filter 2" Mounted (OPT-L-PRO-2)
1 review
$255.00

Optolong L-Pro (L-Professional) filter is designed to improve the visibility of various deepsky objects. By selectively reducing the transmission of wavelengths of light pollutants, specifically those produced by artificial lightings including mercury vapor lamps, both...

In Stock
Optolong
Optolong LRGB Filter Kit 1.25" Mounted (OPT-LRGB-KIT-125)
1 review
$255.00

Optolong LRGB filter set is designed for maximum contrast and with extremely high gradients for clear differentiation of colours. The LRGB filter set divides the spectrum into its components red, green, blue and luminance. Main...

In Stock
Optolong
Optolong OIII 6.5nm Narrowband Filter 2" Mounted (OPT-OIII-65NM-2)
$279.00

Optolong improved extra Narrowband OIII-CCD 6.5nm filter is designed for nebula observation allowing 6.5nm bandwidth of light centered on a wavelength of 500nm through, which corresponds to OIII emission lines, and reducing the transmission of...

1 2

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