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  • Hot OPTOLONG 2" UHC Filter for Telescope Eyepiece Cuts Light Pollution co

    OPTOLONG UHC Filter. Being highly transparent to the main nebula emission lines at OIII (496nm and 500nm), H-beta (486nm), NII (654nm and 658nm), H-alpha (656nm) as well as SII (672nm). UHC has a narrower passband and thus provides higher contrast than a CLS (City Light Pollution / Light Pollution Reduction) filter.
    AU $65.99
    From China
    Free postage
    or Best Offer
  • 1.25"&2"SVBONY Ultra High Contrast UHC Astronomy telescope Filter for Deep-Sky

    Due to its ability to produce exceptionally sharp and clear images, this filter is considered one of the most popular astronomy accessories. Do not look at the sun with SVBONY filter. You would be blind if you fail to observe the warning.
    AU $69.74
    From China
    Was: Previous priceAU $74.99
    Free postage
    or Best Offer
  • HOT 1.25" Eyepiece Colored Filter Set & Moon Filters Accessories for Telescope

    Lowest Price in Australia. Whatever your enquiries are, we will be there to help quickly. new releases and special deals.
    AU $67.99
    AU $30.00 postage
    Brand: Unbranded
  • SVBNOY H-Alpha 7nm 1.25"Filter Narrowband Astro Photographic CCD Filter deep sky

    Because H-Alpha is 656nm mainly through the high permeability of the spectrum, and 656nm spectrum of the color presented by the red-based, 300-1100nm cut-off depth to get the details of the launch nebula richer. Extremely narrow bandwidth allows only the 656nm band to pass through the filter, can effectively cut off the artificial light Na lamp and Hg lamp interference to make the transmission line through, so as to improve the nebula contrast. With CCD is better choice for deep sky photography and wide-field astrophotography.
    AU $139.49
    From China
    Was: Previous priceAU $149.99
    Free postage
    or Best Offer
  • New!!!OPTOLONG UHC Built-in Filter for Canon EOS 5D2/5D3 Camera Astrophotography

    OPTOLONG UHC EOS-FF Built-in filter is only for Canon EOS 5D2/ EOS 5D3/ EOS 6D. OPTOLONG UHC EOS-FF Filter. Sophisticated CNC molding in one. Liner in plastic box: imported high-pressure white EVA material.
    AU $109.99
    From China
    AU $1.00 postage
    Brand: Unbranded
    or Best Offer
    Size: 2.0 in
  • SVBONY 1.25"LRGB Filter Set for Deepsky&Planetary CCD Astrophotography Imaging

    The LRGB filter set divides the spectrum into its components red, green, blue and luminance. SVBONY 1.25" LRGB Astrophotography Filter Set. Gap between green and red filters serves to block out the primary Sodium light pollution line at 589nm and improves color balance and separation.
    AU $144.14
    From China
    Was: Previous priceAU $154.99
    Free postage
    or Best Offer
  • 2" SVBNOY H-Alpha 7nm Filter Narrowband Astron Photographic CCD Filter Deep SKY

    Because H-Alpha is 656nm mainly through the high permeability of the spectrum, and 656nm spectrum of the color presented by the red-based, 300-1100nm cut-off depth to get the details of the launch nebula richer. Extremely narrow bandwidth allows only the 656nm band to pass through the filter, can effectively cut off the artificial light Na lamp and Hg lamp interference to make the transmission line through, so as to improve the nebula contrast. With CCD is better choice for deep sky photography and wide-field astrophotography.
    AU $167.39
    From China
    Was: Previous priceAU $179.99
    Size: 2.0 in
    Free postage
    or Best Offer
  • OPTOLONG 2"L-Pro Filter for Light Pollution Suppression deepsky astrophotography

    The 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 high & low pressure sodium vapor lights and the unwanted natural light caused by neutral oxygen emission in our atmosphere (i.e. skyglow). Together with the highly transparent in main nebula emission lines at OIII(496nm and 500nm), H-beta (486nm), NII(654nm and 658nm), H-alpha(656nm) as well as SII(672nm), the filter is suitable for enhancing the contrast and details for both visual and photographic purpose at sub-rural area with heavy light pollution.
    AU $199.01
    From China
    Was: Previous priceAU $213.99
    Free postage
    or Best Offer
  • Canon EOS Clip Broadband CLS Filter City Light Suppression for CCD Cameras&DSLR

    Together with the highly transparent in main nebula emission lines at OIII(496nm and 500nm), H-beta (486nm), NII(654nm and 658nm), H-alpha(656nm) as well as SII(672nm), the filter is suitable for enhancing the contrast and details for both visual and photographic purpose at sub-rural area.
    AU $78.99
    From China
    AU $1.00 postage
    or Best Offer
  • 2" Optolong LRGB Imaging Filter Set for Deep Sky&Planetary Photography

    The LRGB filter set divides the spectrum into its components: red, green, blue and luminance. About Optolong's LRGB Filter Set. 1 x 2" Optolong LRGB Imaging Filter Se. Suitable for deep sky and planetary CCD imaging.
    AU $249.23
    From China
    Was: Previous priceAU $267.99
    Free postage
    or Best Offer
  • Hot SVBONY 2" LRGB Imaging Filters Suitable for Deepsky&Planetary CCD Imaging

    The LRGB filter set divides the spectrum into its components red, green, blue and luminance. SVBONY 2" LRGB Astrophotography Filter Set. Gap between green and red filters serves to block out the primary Sodium light pollution line at 589nm and improves color balance and separation.
    AU $232.49
    From China
    Was: Previous priceAU $249.99
    AU $1.00 postage
    or Best Offer
  • Set of 6pcs Telescope Eyepiece 1.25" Eyepiece Filters Accessories for Astronomy

    The eyepiece is not included. Quantity: 6pcs (Yellow; Orange; Red; Green; Blue; Moon&Skyglow). 1 x Filters Set (6pcs). With a portable and shockproof storage case for easy carrying of filters. Easy to install and use, can help you filter unnecessary light and make you see clearer.
    AU $43.49
    eBay Premium Service
    AU $1.69 postage
    From Hong Kong
    or Best Offer
    Brand: Unbranded
  • OPTOLONG 2" L-Pro Filter Suitable for visual observation and astrophotography

    OPTOLONG 2" L-Pro Filter. Together with the highly transparent in main nebula emission lines at OIII(496nm and 500nm), H-beta (486nm), NII(654nm and 658nm), H-alpha(656nm) as well as SII(672nm), the filter is suitable for enhancing the contrast and details for both visual and photographic purpose at sub-rural area with heavy light pollution.
    AU $218.99
    From China
    AU $1.00 postage
    or Best Offer
  • OPTOLONG H-Alpha 1.25" 7nm SII-CCD 6.5nm OIII-CCD 6.5nm Narrow-Band Filters Kit

    These Optolong 1.25" Filters are made with glass that has been multi-coated with an ion-assisted deposition technology to ensure scratch resistance and stability on the central wavelength, or CWL. The filter cell is made of lightweight, strong metal and is CNC machined, sand-blasted; black anodized, and then laser engraved. The result is a super thin filter cell that will produce a clear aperture of 26mm. The Optolong 6.5nm SII filter can be used in conjunction with H-Alpha and OIII filters for false color emission line images like the Hubble Space Telescope.
    AU $512.99
    From China
    AU $1.00 postage
    or Best Offer
  • Hot SVBONY 1.25"LRGB Imaging Filters Suitable for Deepsky&Planetary CCD Imaging

    The LRGB filter set divides the spectrum into its components red, green, blue and luminance. SVBONY 1.25" LRGB Astrophotography Filter Set. Gap between green and red filters serves to block out the primary Sodium light pollution line at 589nm and improves color balance and separation.
    AU $154.99
    From China
    AU $1.00 postage
    or Best Offer
  • SVBONY 2"Astrophotography LRGB Filter kit for Deepsky&Planetary CCD Imaging NEW

    The LRGB filter set divides the spectrum into its components red, green, blue and luminance. SVBONY 2" LRGB Astrophotography Filter Set. Gap between green and red filters serves to block out the primary Sodium light pollution line at 589nm and improves color balance and separation.
    AU $232.49
    From China
    Was: Previous priceAU $249.99
    Size: 2.0 in
    Free postage
    or Best Offer
  • SVBONY 1.25" 7pcs Telescope Filters set-5 Color Filters+Moon Filter+CPL Filter

    SVBONY 1.25" Moon Filter CPL Filter Five Color Filters Kit for Enhance Lunar & Planetary Views Reduces Light Pollution. The eyepiece filter cells are made of anodized aluminum and are single-threaded.
    AU $39.05
    From China
    Was: Previous priceAU $41.99
    Free postage
    or Best Offer
    9 watching
  • OPTOLONG 2"CLS Deep Sky Filter for Telescope 2''Eyepiece Cut Light Pollution NEW

    CLS filter lets the light from nebula highly transmit, it has a high transmittance at the region of OIII (496nm & 500nm), Hβ (486nm), NII (654nm &658nm), Ha (656nm) and SII (672nm). Excellent carrier material.
    AU $66.95
    From China
    Was: Previous priceAU $71.99
    Free postage
    or Best Offer
  • Universal 2'' 5-Position Manual Telescope Filter Wheel for Astrophotography New

    This 2" filter wheel lets you use up to 5 different filters and change them within just a few seconds. Whether for astrophotography or visual observing - your filters are always ready to use. Use the filter wheel with UHC, OII, CLS and other filters, for example - which lets you quickly and easily find the best filter when visually observing.
    AU $111.59
    From China
    Was: Previous priceAU $119.99
    Brand: Unbranded
    AU $1.00 postage
    or Best Offer
  • 7PCS SVBONY 1.25" Moon Filter+CPL Filter+5 Color Filter Kit for telescope New

    SVBONY 1.25" Moon Filter CPL Filter Five Color Filters Kit for Enhance Lunar & Planetary Views Reduces Light Pollution This SVBONY 1.25 inch filters include most popular color planetary and moon telescope eyepiece filters: 23A Bright Red 21 Orange 12 Yellow 56 Bright Green 82A Bright Blue Circular-Polarizing Filter and Moon Filter. These filters are vat-dyed for even color coating and then anti-reflection coated for maximum transmission. The eyepiece filter cells are made of anodized aluminum and are single-threaded. SVBONY 1.25 inch 7pcs Telescope Filters set - 5 Color Filters Moon Filter and CPL Filter High quality Aluminum alloy frame and Optical Glass, superb value for money Color filters (Red, Blue, Green, and Orange & Yellow) highlight features on Mars, Jupiter, and Saturn CPL F.
    AU $39.05
    From China
    Was: Previous priceAU $41.99
    AU $1.00 postage
    or Best Offer
  • 1.25" Astronomical Telescope Filter Lens Useful with M28*0.6 Fine Metric Threads

    AU $6.89 to AU $7.11
    From China
    Free postage
    Brand: Unbranded
  • OPTOLONG 1.25" L-Pro Filter for Light Pollution Suppression Sky astrophotography

    The 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 high & low pressure sodium vapor lights and the unwanted natural light caused by neutral oxygen emission in our atmosphere (i.e. skyglow). Together with the highly transparent in main nebula emission lines at OIII(496nm and 500nm), H-beta (486nm), NII(654nm and 658nm), H-alpha(656nm) as well as SII(672nm), the filter is suitable for enhancing the contrast and details for both visual and photographic purpose at sub-rural area with heavy light pollution.
    AU $151.58
    From China
    Was: Previous priceAU $162.99
    Free postage
    or Best Offer
  • New OPTOLONG 2" H-Beta 25nm Telescope Filter Improve Visual Contrast of Nebulae

    DO NOT LOOK AT THE SUN WITH OPTOLONG FILTER. You would be BLIND if you fail to observe the warning. 2" OPTOLONG H-Beta 25nm Light Pollution Filter. H-beta emits 486nm and it is a blue-colored filter.
    AU $115.99
    From China
    AU $1.00 postage
    or Best Offer
  • OPTOLONG H-Alpha 7nm SII-CCD 6.5nm OIII-CCD 6.5nm Narrow-Band 36mm Filters Kit

    The Optolong 36mm Unmounted Filter is made with glass that has been multi-coated with an ion-assisted deposition technology to ensure scratch resistance and stability on the central wavelength, or CWL. This filter is designed to be used in filter wheels that accept 36mm unmounted filters. Please Note: This h-alpha filter is NOT for use on the Sun. To do so could cause irreparable eye damage or blindness. Don't even think about it!.
    AU $559.99
    From China
    AU $1.00 postage
    or Best Offer
  • Datyson tektronix cap bard film 60ZA telescope objective solar filter 5P0070 JR

    Product Code: 5P0070. 1pc Bode film objective lens cover. Due to the difference between different monitors, the picture may not reflect the actual color of the item.
    AU $8.74
    eBay Premium Service
    Free postage
    From China
    or Best Offer
    Brand: Unbranded
  • OPTOLONG EOS-FF L-Pro Filter for Canon 5D2/5D3/6D Light Pollution Suppression es

    OPTOLONG EOS-FF L-Pro Filter Suitable for Canon 5D2/5D3/6D Best Choice for Light Pollution Suppression. OPTOLONG EOS-FF L-Pro Filter. Together with the highly transparent in main nebula emission lines at OIII(496nm and 500nm), H-beta (486nm), NII(654nm and 658nm), H-alpha(656nm) as well as SII(672nm), the filter is suitable for enhancing the contrast and details for both visual and photographic purpose at sub-rural area with heavy light pollution.
    AU $249.99
    From China
    AU $1.00 postage
    or Best Offer
  • OPTOLONG 1.25" L-Pro Filter Suitable for visual observation and astrophotography

    OPTOLONG 1.25" L-Pro Filter. Together with the highly transparent in main nebula emission lines at OIII(496nm and 500nm), H-beta (486nm), NII(654nm and 658nm), H-alpha(656nm) as well as SII(672nm), the filter is suitable for enhancing the contrast and details for both visual and photographic purpose at sub-rural area with heavy light pollution.
    AU $167.99
    From China
    AU $1.00 postage
    or Best Offer
  • 2pcs New OPTOLONG CLS Deepsky Filter for Canon EOS-C Cameras&Astrophotography

    2pcs OPTOLONG CLS EOS-C Filter. Light pollution reduction and contrast boosting deep sky filter for Galaxies, nebulas and clusters. Na (Sodium) at 598nm, 589.6nm, 615.4nm, and 616.1nm. It's easy. A:Overseas Warehouse Local Dispatch.
    AU $179.99
    From China
    AU $1.00 postage
    or Best Offer
  • New 2" CLS City Light Suppression Light Pollution Broadband Filter for Telescope

    Together with the highly transparent in main nebula emission lines at OIII(496nm and 500nm), H-beta (486nm), NII(654nm and 658nm), H-alpha(656nm) as well as SII(672nm), the filter is suitable for enhancing the contrast and details for both visual and photographic purpose at sub-rural area.
    AU $54.99
    From China
    AU $1.00 postage
    or Best Offer
  • New OPTOLONG 1.25" H-Beta 25nm Telescope Filter Improve Nebulae Visual Contrast

    DO NOT LOOK AT THE SUN WITH OPTOLONG FILTER. You would be BLIND if you fail to observe the warning. 1.25" OPTOLONG H-Beta 25nm Filter. Narrowband filter do not eliminate the effects of light pollution or increase the object's brightness.
    AU $76.99
    From China
    AU $1.00 postage
    or Best Offer
  • SVBONY H-Alpha 7nm 1.25" Filter Narrowband Astronomical Photographic Filters

    SVBONY H-Alpha 7nm 1.25" Filter. Optical high-precision double-sided polishing to ensure that the parallelism is higher than 30 "and high flatness 1 / 4&lambda, to ensure that does not affect the image quality of the image.
    AU $147.86
    From China
    Was: Previous priceAU $158.99
    AU $1.00 postage
    or Best Offer
  • OPTOLONG EOS-C L-Pro Filter use for CCD Camera DSLR Light Pollution Suppression

    OPTOLONG EOS-C L-Pro Filter. Together with the highly transparent in main nebula emission lines at OIII(496nm and 500nm), H-beta (486nm), NII(654nm and 658nm), H-alpha(656nm) as well as SII(672nm), the filter is suitable for enhancing the contrast and details for both visual and photographic purpose at sub-rural area with heavy light pollution.
    AU $234.99
    From China
    AU $1.00 postage
    or Best Offer
  • New Optolong Clear Sky Filter 82mm Anti-Reflecting Coating design CNC Processing

    Optolong 82mm Clear Sky Filter Front Facing No Dark-Corner and Anti-Reflecting Coating. Optolong Clear Sky filter, design of anti-reflecting coating, reduce the interference of dazzle light. Optolong Clear Sky Filter blocks the city Na and Hg light pollution so that improve contrast effectively.
    AU $299.99
    From China
    AU $1.00 postage
    or Best Offer
  • New Optolong Clear Sky Filter 77mm Anti-Reflecting Coating design CNC Processing

    Optolong 77mm Clear Sky Filter Front Facing No Dark-Corner and Anti-Reflecting Coating. Optolong Clear Sky filter, design of anti-reflecting coating, reduce the interference of dazzle light. Optolong Clear Sky Filter blocks the city Na and Hg light pollution so that improve contrast effectively.
    AU $257.99
    From China
    AU $1.00 postage
    or Best Offer
  • SVBONY 2"Ultra High Contrast UHC Filter for Observations of Deep-Sky Objects NEW

    Do not look at the sun with SVBONY filter. You would be HURT if you fail to observe the warning. Due to its ability to produce exceptionally sharp and clear images, this filter is considered one of the most popular astronomy accessories.
    AU $49.28
    From China
    Was: Previous priceAU $52.99
    AU $1.00 postage
    or Best Offer
  • 1.25" 25nm O-III Filter for Telescope 1.25" Eyepiece Cuts Light Pollution TOP

    Fainter objects require nights of good seeing and reasonably dark skies for best filter performance. This filter just might allow you to see objects that you'd otherwise miss. High value transmission of pass-band and optical density of off-band is assured through Optolong's planetary rotation system, a homogenous and precise coating procedure.
    AU $66.99
    From China
    AU $1.00 postage
    or Best Offer
  • SVBONY UHC Ultra High Contrast Canon EOS telescope Clip Filter for CCD Camera

    Due to its ability to produce exceptionally sharp and clear images, this filter is considered one of the most popular astronomy accessories. DO NOT LOOK AT THE SUN WITH SVBONY FILTER. You would be BLIND if you fail to observe the warning.
    AU $66.95
    From China
    Was: Previous priceAU $71.99
    Free postage
    or Best Offer
  • Svbony 2" Linear Polarizer Filter Anodized Aluminum Glass for Lunar Observing es

    Svbony 2" Linear Polarizer Filter Anodized Aluminum Optical Glass for Lunar Planetary Observing. The Svbony 2" Polarizing Filter is high quality anodized aluminum, optical glass polarizing filter designed to reduce the amount of light entering your eyepiece.
    AU $11.69
    From China
    AU $1.00 postage
    or Best Offer
  • Brand New OPTOLONG NK-FF L-Pro Filter fit for Nikon D600/D610/D700/D750/D800

    OPTOLONG NK-FF L-Pro Filter Suitable for Nikon D600/D610/D700/D750/D800 Best Choice for Light Pollution Suppression. OPTOLONG NK-FF L-Pro Filter Suitable for Nikon D600/D610/D700/D750/D800/D800E/D810/D810A/DF Best Choice for Light Pollution Suppression.
    AU $249.99
    From China
    AU $1.00 postage
    or Best Offer
  • SVBONY 2" UV/IR Cut Filter Infra Red Filter CCD Camera for Astronomy Telescope

    SVBONY 2" UV/IR Cut Filter. Model: UV/IR CUT Filter. It's easy.
    AU $24.99
    From China
    AU $1.00 postage
    or Best Offer
  • SVBONY 1.25" Variable Polarizing Filter for Astronomic Telescope Eyepiece Black

    Do not look at the sun with SVBONY filter. You would be blind if you fail to observe the warning. Svbony 1.25" Variable Polarizing Filter. Type: Variable Polarizing Filter. Adjust the amount of light transmission from 1% to 40% by rotating the filter housing.
    AU $25.59
    From China
    Free postage
    or Best Offer
  • New Svbony 1.25" Linear Polarizer Filter Anodized Aluminum Glass Lunar Observing

    Svbony 1.25" Linear Polarizer Filter Anodized Aluminum Optical Glass for Lunar Planetary Observing. The Svbony 1.25" Polarizing Filter is high quality anodized aluminum, optical glass polarizing filter designed to reduce the amount of light entering your eyepiece.
    AU $10.99
    From China
    AU $1.00 postage
    or Best Offer
  • Optolong 1.25"Ultra High Contrast UHC Nebula Filter for Cuts Light Pollution

    Optolong UHC Filter. Being highly transparent to the main nebula emission lines at OIII (496nm and 500nm), H-beta (486nm), NII (654nm and 658nm), H-alpha(656nm) as well as SII (672nm). UHC has a narrower passband and thus provides higher contrast than a CLS (City Light Pollution / Light Pollution Reduction) filter.
    AU $39.98
    From China
    Was: Previous priceAU $42.99
    Free postage
    or Best Offer
  • SVBONY1.25"ND Neutral Density Moon Filter Kit for Astronomy Telescope Eyepiece

    Last Quarter Moon - Three weeks after new, we again can see half of the illuminated part. Quarter Moon - A week after the new moon, when the Moon has completed about a quarter of its turn around the Earth, we can see half of the illuminated part; that is, a quarter of the Moon.
    AU $35.33
    From China
    Was: Previous priceAU $37.99
    Free postage
    or Best Offer
  • New 1.25inch Variable Polarizing Filter for Astronomic Telescope Eyepiece Black

    Type: Variable Polarizing Filter. Svbony 1.25" Variable Polarizing Filter. Adjust the amount of light transmission from 1% to 40% by rotating the filter housing. Do not look at the sun with SVBONY filter.
    AU $25.99
    From China
    AU $1.00 postage
    or Best Offer

Telescope Filters

There's nothing quite like gazing at the night sky through a telescope. Telescopes make it easy for you to view celestial bodies that you can't see with the naked eye, and using filters helps you to view objects by filtering out light and increasing your resolution to hone in on specific objects. They also help to relieve eye fatigue. There are different filters for various uses, depending on what you're trying to see through your lens, most of which are easy to install and remove.

Filter Types

You'll want to pick a filter based on what you're trying to view. For instance, a moon filter reduces outside glare so you have a sharper view of the moon. Solar filters make it safe for you to view the sun, while planet filters come in a variety of colours to view different planets and create more definition. There are also regular filters, called light pollution reduction filters that are meant for creating just the right amount of contrast to make viewing the sky optimal. These remove unwanted light and create a darker background so that objects pop against it, making it easier to see planets, stars and galaxies.

Filter Brands

Filters come from various brands and are compatible with different telescopes. You should make sure that the filter you are purchasing works with your telescope's specific type and brand. Some well-known filter brands include Celestron, Meade and Vixen. There are also filter options manufactured by Daystar, Astronomik, BAADER and Sky-Watch. You can select a filter that is the same brand as your telescope, or simply one that fits your device.

Filter Sizes

Filters come in assorted sizes to fit a variety of scopes. Some sizes include 32 mm, 62 mm and 73 mm filters. Most filters affix to the telescope by screwing onto the telescope, so the filter must be a perfect fit. Attaching filters is easy, and after you select the proper size, you can even buy a filter kit that comes with multiple types of filters to enhance your sky-watching experience. Filters typically attach to the bottom of the telescope's eyepiece.

Other Telescope Accessories

When you carry filters with you, it's a wise idea to keep them protected by placing them in a pouch or case. Other telescope parts and accessories to consider purchasing include mounts to keep your scope sturdy as you view the sky, a case to keep your telescope and supplies in for portability and cleaning tools so that your lens stays clean and dust-free.

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