Skip to content
FREE SHIPPING FOR ORDERS OVER $500 *Some exceptions may apply.
FREE SHIPPING FOR ORDERS OVER $500 *Some exceptions may apply.

Filters

An astronomical filter is a telescope accessory consisting of an optical filter used by amateur astronomers to simply improve details and contrast.
Original price $118.00 - Original price $470.00
Original price
$118.00 - $470.00
$118.00 - $470.00
Current price $118.00

Pegasus Astro LRGB Photographic Filter Set - 2" Mounted (PEG-FLTR-2M-LRGB)

Pegasus

Pegasus Astro LRGB Photographic Filter Parfocal LRGB Filters Broadband filters are parfocal which ensures that you will not have to refocus when yo...

View full details
Original price $118.00 - Original price $470.00
Original price
$118.00 - $470.00
$118.00 - $470.00
Current price $118.00
Original price $45.00 - Original price $67.00
Original price
$45.00 - $67.00
$45.00 - $67.00
Current price $45.00

Optolong Moon & Skyglow Filter

Optolong

Optolong Moon & Skyglow Filter Optolong Moon & Skyglow filter is designed to darken the background sky by blocking light transmission from ...

View full details
Original price $45.00 - Original price $67.00
Original price
$45.00 - $67.00
$45.00 - $67.00
Current price $45.00
Original price $321.00 - Original price $503.00
Original price
$321.00 - $503.00
$321.00 - $503.00
Current price $321.00

Optolong LRGB Filter Set

Optolong

Optolong LRGB Filter Set The Optolong LRGB Filter Set is designed for maximum contrast and with extremely high gradients for clear differentiation ...

View full details
Original price $321.00 - Original price $503.00
Original price
$321.00 - $503.00
$321.00 - $503.00
Current price $321.00
Original price $111.00 - Original price $161.00
Original price
$111.00 - $161.00
$111.00 - $161.00
Current price $111.00

Optolong IR Pass685 Planetary Filter

Optolong

Optolong IR Pass685 Planetary Filter Optolong IR Pass 685nm filter is designed to block wavelengths below 670nm and can be used in IR-LRGB imaging ...

View full details
Original price $111.00 - Original price $161.00
Original price
$111.00 - $161.00
$111.00 - $161.00
Current price $111.00
Original price $77.00 - Original price $161.00
Original price
$77.00 - $161.00
$77.00 - $161.00
Current price $77.00

Optolong CLS(City Light Suppression) Broadband Filter

Optolong

Optolong CLS (City Light Suppression) Broadband Filter 1.  Optolong CLS Introduction The CLS (City Light Suppression) broadband filter is designed ...

View full details
Original price $77.00 - Original price $161.00
Original price
$77.00 - $161.00
$77.00 - $161.00
Current price $77.00
Original price $245.00 - Original price $297.00
Original price
$245.00 - $297.00
$245.00 - $297.00
Current price $245.00

IDAS NB1 Nebula Booster Filter H-alpha, H-beta & OIII

IDAS

IDAS NB1 Nebula Booster Filter H-alpha, H-beta & OIII The IDAS NB1 Nebula Booster Filter is a triple line-pass filter (H-alpha, H-beta & OI...

View full details
Original price $245.00 - Original price $297.00
Original price
$245.00 - $297.00
$245.00 - $297.00
Current price $245.00
Original price $245.00 - Original price $347.00
Original price
$245.00 - $347.00
$245.00 - $347.00
Current price $245.00

IDAS NGS1 / LPS-D3 filter

IDAS

IDAS NGS1 / LPS-D3 filter IDAS LPS-D3(formerly NGS1) filters enhance the contrast of astronomical emission nebulae against a sky with both man-made...

View full details
Original price $245.00 - Original price $347.00
Original price
$245.00 - $347.00
$245.00 - $347.00
Current price $245.00
Original price $644.00 - Original price $1,932.00
Original price
$644.00 - $1,932.00
$644.00 - $1,932.00
Current price $644.00

Chroma 5nm H-alpha Filter

Chroma

Chroma 5nm H-alpha Filter H-alpha filters are essential for imaging nebulae and other objects which are rich in ionized hydrogen. At 656.3nm, a na...

View full details
Original price $644.00 - Original price $1,932.00
Original price
$644.00 - $1,932.00
$644.00 - $1,932.00
Current price $644.00
Original price $231.00 - Original price $1,056.00
Original price
$231.00 - $1,056.00
$231.00 - $1,056.00
Current price $231.00

Baader UBVRI Bessel U-Filter - Photometric

Baader Planetarium

Baader UBVRI Bessel U-Filter - Photometric Baader Bessel-UBVRI Bandpass Filter Set, suitable from f/15 to f/1.8 Classic photometric filters with t...

View full details
Original price $231.00 - Original price $1,056.00
Original price
$231.00 - $1,056.00
$231.00 - $1,056.00
Current price $231.00
Original price $1,018.00 - Original price $4,776.00
Original price
$1,018.00 - $4,776.00
$1,018.00 - $4,776.00
Current price $1,018.00

Baader UBVRI Bessel Filterset - Photometric

Baader Planetarium

Baader UBVRI Bessel Filterset - Photometric Baader Bessel-UBVRI Bandpass Filter Set, suitable from f/15 to f/1.8 Classic photometric filters with ...

View full details
Original price $1,018.00 - Original price $4,776.00
Original price
$1,018.00 - $4,776.00
$1,018.00 - $4,776.00
Current price $1,018.00
Original price $90.00 - Original price $442.00
Original price
$90.00 - $442.00
$90.00 - $442.00
Current price $90.00

Astronomik L-1 UV-IR Blocking Filter

Astronomik

Astronomik L-1 UV-IR Blocking Filter Astronomik now offers you a range of three different UV+IR blockers as Luminance filters. The different spectr...

View full details
Original price $90.00 - Original price $442.00
Original price
$90.00 - $442.00
$90.00 - $442.00
Current price $90.00
Original price $132.00 - Original price $276.00
Original price
$132.00 - $276.00
$132.00 - $276.00
Current price $132.00

Astronomik Blue Type 2c Filter

Astronomik

Astronomik Blue Type 2c Filter Our filter set especially designed for astrophotography with CCD cameras. These filters provide a natural color repr...

View full details
Original price $132.00 - Original price $276.00
Original price
$132.00 - $276.00
$132.00 - $276.00
Current price $132.00
Original price $561.00 - Original price $561.00
Original price
$561.00
$561.00 - $561.00
Current price $561.00

Antlia NII 3nm Pro Narrowband Filter - 2'' (NII-2)

Antlia

Antlia NII 3nm Pro Narrowband Filter The Antlia NII Pro narrowband filter optimizes the full width at half maximum (FWHM) to a 3nm bandpass. As the...

View full details
Original price $561.00 - Original price $561.00
Original price
$561.00
$561.00 - $561.00
Current price $561.00
Original price $168.00 - Original price $168.00
Original price
$168.00
$168.00 - $168.00
Current price $168.00

Antlia 8-EL UHC Pro Visual Enhancer Filter - 2'' Mounted

Antlia

Antlia 8-EL UHC Pro Visual Enhancer Filter - 2'' Mounted   The Antlia 8-EL UHC Pro Visual Enhancer filter is a high--performance optical filter des...

View full details
Original price $168.00 - Original price $168.00
Original price
$168.00
$168.00 - $168.00
Current price $168.00
Original price $1,200.00 - Original price $1,200.00
Original price
$1,200.00
$1,200.00 - $1,200.00
Current price $1,200.00

Chroma 3nm OIII Filter Optimized for f/2.8-f/3.6 OLDER MODEL - USED (27066-U)

Chroma

Chroma 3nm OIII Filter Optimized for f/2.8-f/3.6 - USED (OLDER MODEL) Chroma’s OIII filters isolate the 500.7nm primary emission line of doubly ion...

View full details
Original price $1,200.00 - Original price $1,200.00
Original price
$1,200.00
$1,200.00 - $1,200.00
Current price $1,200.00
Original price $797.00 - Original price $797.00
Original price
$797.00
$797.00 - $797.00
Current price $797.00

Optolong L2 Dual-Combo Set (L-eXtreme&L-Synergy) (2")

Optolong

Optolong L2 Dual-Combo Set (L-eXtreme&L-Synergy)   L2 Dual-Combo Set includes two premium filters: one L-eXtreme and one L-Synergy. L-eXtreme:T...

View full details
Original price $797.00 - Original price $797.00
Original price
$797.00
$797.00 - $797.00
Current price $797.00
Original price $475.00 - Original price $587.00
Original price
$475.00 - $587.00
$475.00 - $587.00
Current price $475.00

Optolong Hydrogen Alpha Narrowband 3nm

Optolong

Optolong Hydrogen Alpha Narrowband 3nm   Original manufacturer description below. Improved description/specifications coming soon. H-Alpha 3nm fil...

View full details
Original price $475.00 - Original price $587.00
Original price
$475.00 - $587.00
$475.00 - $587.00
Current price $475.00
Original price $224.00 - Original price $318.00
Original price
$224.00 - $318.00
$224.00 - $318.00
Current price $224.00

SVBONY SV220 7nm Dual Narrowband Filter Set Entry-Level "Hubble Palette"

Svbony

SVBONY SV220 7nm Dual Narrowband Filter Set Entry-Level "Hubble Palette" Gear for Deep-Sky Photography Features dual Ha&OIII and SII&OIII...

View full details
Original price $224.00 - Original price $318.00
Original price
$224.00 - $318.00
$224.00 - $318.00
Current price $224.00
Original price $450.00
Original price $450.00 - Original price $450.00
Original price $450.00
Current price $170.00
$170.00 - $170.00
Current price $170.00

Lumicon 2 Inch SCT Rear Cell Hydrogen-β Filter (LF3065)

Lumicon

Lumicon 2 Inch SCT Rear Cell Hydrogen-β Filter FINAL SALE! Lumicon 2 Inch SCT Rear Cell Hydrogen-Beta Filter is also known as the Horsehead Nebula...

View full details
Original price $450.00
Original price $450.00 - Original price $450.00
Original price $450.00
Current price $170.00
$170.00 - $170.00
Current price $170.00
Save $280.00 Save $0.00
Original price $307.00 - Original price $307.00
Original price
$307.00
$307.00 - $307.00
Current price $307.00

iOptron LRGB Imaging Filter Kit -1.25" (3383-LRGB)

iOptron

iOptron LRGB Imaging Filter Kit -1.25" The LRGB filter set is designed for maximum contrast and has extremely high gradients for clear differenti...

View full details
Original price $307.00 - Original price $307.00
Original price
$307.00
$307.00 - $307.00
Current price $307.00
Original price $279.00 - Original price $279.00
Original price
$279.00
$279.00 - $279.00
Current price $279.00

iOptron iEFW 5-Position Electronic Filter Wheel (3381)

iOptron

iOptron iEFW 5-Position Electronic Filter Wheel The iOptron iEFW-15 Electronic Filter Wheel provides automated control of up to 5 filters. It works...

View full details
Original price $279.00 - Original price $279.00
Original price
$279.00
$279.00 - $279.00
Current price $279.00
Original price $559.00 - Original price $559.00
Original price
$559.00
$559.00 - $559.00
Current price $559.00

Optolong L1 L-Quad & L-Para Enhence Filter Set (L1-SET)

Optolong

Optolong L1 L-Quad & L-Para Enhence Filter Set L1 Dual -Combo Set includes:one L-Quad Enhance Filter and one L-Para L-Quad Enhance Filter:Quad ...

View full details
Original price $559.00 - Original price $559.00
Original price
$559.00
$559.00 - $559.00
Current price $559.00
Original price $7.00 - Original price $13.00
Original price
$7.00 - $13.00
$7.00 - $13.00
Current price $7.00

Wanderer Astro ND Filter for WandererCover

Wanderer Astro

Wanderer Astro ND Filter for WandererCover  Extends the exposure time by 32 times The ND filter for WandererCover is designed specifically for user...

View full details
Original price $7.00 - Original price $13.00
Original price
$7.00 - $13.00
$7.00 - $13.00
Current price $7.00
Original price $847.00 - Original price $1,679.00
Original price
$847.00 - $1,679.00
$847.00 - $1,679.00
Current price $847.00

Askar Colour Magic Ultra E1 & E2 Duo Narrowband Filter

Askar

Askar Colour Magic Ultra E1 & E2 Duo Narrowband Filter Askar newly launched ColourMagic Ultra E1 2” Duo-narrowband Filter, is a professional as...

View full details
Original price $847.00 - Original price $1,679.00
Original price
$847.00 - $1,679.00
$847.00 - $1,679.00
Current price $847.00
Original price $731.00 - Original price $2,040.00
Original price
$731.00 - $2,040.00
$731.00 - $2,040.00
Current price $731.00

Astronomy Plus Energy Rejection Filters W. Metal Cover

Astronomy Plus - Telescopes & Accessories - Astrophotography in Canada

Astronomy Plus Energy Rejection Filters Suitable for Quark with refracting and reflecting telescope to observe and photograph the solar prominence ...

View full details
Original price $731.00 - Original price $2,040.00
Original price
$731.00 - $2,040.00
$731.00 - $2,040.00
Current price $731.00
Original price $84.00 - Original price $84.00
Original price
$84.00
$84.00 - $84.00
Current price $84.00

Explore Scientific Neutral Density Filter 2" ND 0.9 (310240)

Explore Scientific

Explore Scientific Neutral Density Filter 2" ND 0.9   The neutral density filter transmits light uniformly across the entire visual spectrum. It se...

View full details
Original price $84.00 - Original price $84.00
Original price
$84.00
$84.00 - $84.00
Current price $84.00
Original price $1,050.00 - Original price $1,050.00
Original price
$1,050.00
$1,050.00 - $1,050.00
Current price $1,050.00

Antlia ALP-T Dual Band Ha & OIII + SII & OIII 3nm 2" Filter Set

Antlia

Antlia ALP-T Dual Band Ha & OIII + SII & OIII 3nm 2" Filter Set Ha&OIII 3nm The Antlia ALP-T Dualband 3nm Ha&OIII Filter is a dual ...

View full details
Original price $1,050.00 - Original price $1,050.00
Original price
$1,050.00
$1,050.00 - $1,050.00
Current price $1,050.00
Original price $546.00 - Original price $546.00
Original price
$546.00
$546.00 - $546.00
Current price $546.00

Antlia ALP-T Dual Band SII & OIII 3nm 2" Filter

Antlia

Antlia ALP-T Dualband 3nm SII + OIII 2'' Filters The Antlia ALP-T Dualband 3nm SII&OIII Filter is a dual narrowband filter, which lets the deep...

View full details
Original price $546.00 - Original price $546.00
Original price
$546.00
$546.00 - $546.00
Current price $546.00
Original price $1,673.00 - Original price $1,673.00
Original price
$1,673.00
$1,673.00 - $1,673.00
Current price $1,673.00

Daystar Combo Quark Accessories Bundle (Q-BUNDLE)

Daystar

Daystar Combo Quark Accessories Bundle Daystar Filters is excited to announce a brand new Quark optimized accessory series designed to fit our clas...

View full details
Original price $1,673.00 - Original price $1,673.00
Original price
$1,673.00
$1,673.00 - $1,673.00
Current price $1,673.00
Original price $20.00 - Original price $27.00
Original price
$20.00 - $27.00
$20.00 - $27.00
Current price $20.00

Astronomik Filter Holder

Astronomik

Astronomik Filter Holder This empty Astronomik filter holder with a knurled edge allows you to mount your own filter glass or replace damaged holde...

View full details
Original price $20.00 - Original price $27.00
Original price
$20.00 - $27.00
$20.00 - $27.00
Current price $20.00
Original price $55.00 - Original price $55.00
Original price
$55.00
$55.00 - $55.00
Current price $55.00

Astronomy Plus Neutral Density 1.25" Filter Set (TA191)

Astronomy Plus

Astronomy Plus Neutral Density 1.25" Filter Set Neutral density filters are an essential tool for astronomers and astrophotographers, especially wh...

View full details
Original price $55.00 - Original price $55.00
Original price
$55.00
$55.00 - $55.00
Current price $55.00
Original price $260.00 - Original price $260.00
Original price
$260.00
$260.00 - $260.00
Current price $260.00

Explore Scientific Nebula Filter H-Beta 2.0-inch (310230)

Explore Scientific

Explore Scientific Nebula Filter H-Beta 2.0-inch   Explore Scientific Nebula Filter 1.25" H-Beta Range from 478nm to 496nm with peak at 489nm. Tran...

View full details
Original price $260.00 - Original price $260.00
Original price
$260.00
$260.00 - $260.00
Current price $260.00
Original price $174.00 - Original price $174.00
Original price
$174.00
$174.00 - $174.00
Current price $174.00

Explore Scientific Nebula Filter CLS 2.0-inch (310220)

Explore Scientific

Explore Scientific Nebula Filter CLS 2.0-inch   Explore Scientific Nebula Filter 1.25" CLS Range from 436nm to 536nm with peak at 488nm. Transmissi...

View full details
Original price $174.00 - Original price $174.00
Original price
$174.00
$174.00 - $174.00
Current price $174.00
Original price $202.00 - Original price $202.00
Original price
$202.00
$202.00 - $202.00
Current price $202.00

Explore Scientific Nebula Filter Oxygen III 2.0-inch (310200)

Explore Scientific

Explore Scientific Nebula Filter Oxygen III 2.0-inch   Explore Scientific Nebula Filter 1.25" O-III Range from 483nm to 511nm with peak at 496nm. T...

View full details
Original price $202.00 - Original price $202.00
Original price
$202.00
$202.00 - $202.00
Current price $202.00
Original price $374.00 - Original price $374.00
Original price
$374.00
$374.00 - $374.00
Current price $374.00

Explore Scientific Nebula Filter H-Alpha 2-inch 7nm (310140)

Explore Scientific

Explore Scientific Nebula Filter H-Alpha 2-inch 7nm   High quality Explore Scientific H-Alpha filter Lets only the emission lines of hydrogen "thr...

View full details
Original price $374.00 - Original price $374.00
Original price
$374.00
$374.00 - $374.00
Current price $374.00
Original price $287.00 - Original price $287.00
Original price
$287.00
$287.00 - $287.00
Current price $287.00

Explore Scientific Nebula Filter H-Alpha 2-inch 12nm (310130)

Explore Scientific

Explore Scientific Nebula Filter H-Alpha 2-inch 12nm   High quality Explore Scientific H-Alpha filter Lets only the emission lines of hydrogen "th...

View full details
Original price $287.00 - Original price $287.00
Original price
$287.00
$287.00 - $287.00
Current price $287.00
Sign Up to Astronomy Plus Newsletters

Subscribe to our Newsletter to be the first to be inform about Promotions, New Products and More!

Free Shipping

in Canada over 500$+* bf txs

Buy Now, Pay Later

Paybright and Sezzle at Check Out

Target the Right Equipment

Contact us!

Price Match

Find a Better Price? We Will Match it!