Deep Sky Filters

Svbony Astronomy Filters for Telescope, 2inches CLS Filter, Light Pollution Filter for Observing Astronomical Photography, for CCD Cameras and DSLR (2in)

Svbony Astronomy Filters for Telescope, 2inches CLS Filter, Light Pollution Filter for Observing Astronomical Photography, for CCD Cameras and DSLR (2in)

Regular price From £29.99 GBP

Regular price ~~£29.99 GBP~~ Sale price From £29.99 GBP
Astromania 2" UHC (Ultra High Contrast) Filter - Superb Views of The Orion, Lagoon, Swan and Other Extended Nebulae

Astromania 2" UHC (Ultra High Contrast) Filter - Superb Views of The Orion, Lagoon, Swan and Other Extended Nebulae

Regular price From £29.72 GBP

Regular price ~~£29.72 GBP~~ Sale price From £29.72 GBP
SVBONY SV227 2" SHO Telescope Filter Set, Narrowband Filter Kit, SII H-Alpha OIII 5nm Narrow-Band Filters, Reduce Light Pollution, 3Pcs Set for Emission Nebula Planetary Nebulae Astrophotography | SII H-Alpha OIII Narrow-Band Filters, Reduce Light Polluti

SVBONY SV227 2" SHO Telescope Filter Set, Narrowband Filter Kit, SII H-Alpha OIII 5nm Narrow-Band Filters, Reduce Light Pollution, 3Pcs Set for Emission Nebula Planetary Nebulae Astrophotography | SII H-Alpha OIII Narrow-Band Filters, Reduce Light Polluti

Regular price £257.17 GBP

Regular price ~~£257.17 GBP~~ Sale price £257.17 GBP
SVBONY SV183 IR Pass Filter 2 Inch T685nm Telescope Filter | IR Imaging for Sharper Planetary Photos,Enhanced Contrast and Surface Detail, CNC Aluminum Frame,1.25" Thread (M48×0.75)

SVBONY SV183 IR Pass Filter 2 Inch T685nm Telescope Filter | IR Imaging for Sharper Planetary Photos,Enhanced Contrast and Surface Detail, CNC Aluminum Frame,1.25" Thread (M48×0.75)

Regular price From £29.32 GBP

Regular price ~~£29.32 GBP~~ Sale price From £29.32 GBP
Svbony SV260 2'' Telescope Filter, OD4 Multi-bandpass Star Filed Filter | for Galaxies Emission Reflection Nebulae Suburban Deep Sky Photography,Light Pollution Suppression,Over 90%Peak Transmittance

Svbony SV260 2'' Telescope Filter, OD4 Multi-bandpass Star Filed Filter | for Galaxies Emission Reflection Nebulae Suburban Deep Sky Photography,Light Pollution Suppression,Over 90%Peak Transmittance

Regular price £139.99 GBP

Regular price ~~£139.99 GBP~~ Sale price £139.99 GBP
Askar Colour Magic C 2" Duo-Band Filter Package, 48mm, Enhancing, Optical Glass, Astrophotography, Astronomy Filters, Increase Contrast and Reduce Light Pollution

Askar Colour Magic C 2" Duo-Band Filter Package, 48mm, Enhancing, Optical Glass, Astrophotography, Astronomy Filters, Increase Contrast and Reduce Light Pollution

Regular price £216.97 GBP

Regular price ~~£216.97 GBP~~ Sale price £216.97 GBP
SVBONY SV240 Telescope Filter, 1.25 inch Multi-Narrowband Filter | Increase Contrast, Ha OIII H-Beta, Telescope Accessories for City Astrophotography and Visual Observation

SVBONY SV240 Telescope Filter, 1.25 inch Multi-Narrowband Filter | Increase Contrast, Ha OIII H-Beta, Telescope Accessories for City Astrophotography and Visual Observation

Regular price From £74.68 GBP

Regular price ~~£74.68 GBP~~ Sale price From £74.68 GBP
Optolong High Contrast 5cm UHC Pollution Filter

Optolong High Contrast 5cm UHC Pollution Filter

Regular price £61.55 GBP

Regular price ~~£61.55 GBP~~ Sale price £61.55 GBP
Optolong LRGB 1.25" Filter Set

Optolong LRGB 1.25" Filter Set

Regular price £172.08 GBP

Regular price ~~£172.08 GBP~~ Sale price £172.08 GBP
OPTOLONG L-PRO 1.25'' Anti-Pollution Filter for CCD & DSLR Cameras, 90% Transmission of Main Nebulous Emission Lines, Optical Glass, 77.0mm

OPTOLONG L-PRO 1.25'' Anti-Pollution Filter for CCD & DSLR Cameras, 90% Transmission of Main Nebulous Emission Lines, Optical Glass, 77.0mm

Regular price £132.76 GBP

Regular price ~~£132.76 GBP~~ Sale price £132.76 GBP
Optolong L-eNhance Filter 2 Inches

Optolong L-eNhance Filter 2 Inches

Regular price £197.10 GBP

Regular price ~~£197.10 GBP~~ Sale price £197.10 GBP
Optolong L-Ultimate 2” Dual Bandpass Light Pollution Reduction Imaging Filter

Optolong L-Ultimate 2” Dual Bandpass Light Pollution Reduction Imaging Filter

Regular price £308.91 GBP

Regular price ~~£308.91 GBP~~ Sale price £308.91 GBP
Optolong L-para (L-Parallels) Dual Band 10nm Narrow Band Light Pollution 2 Inch Filter L-Parallels (2024 New)

Optolong L-para (L-Parallels) Dual Band 10nm Narrow Band Light Pollution 2 Inch Filter L-Parallels (2024 New)

Regular price £227.60 GBP

Regular price ~~£227.60 GBP~~ Sale price £227.60 GBP
Optolong L-Extreme 7nm Dual Narrowband Filter (H-Alpha and O-III) (2")

Optolong L-Extreme 7nm Dual Narrowband Filter (H-Alpha and O-III) (2")

Regular price £236.31 GBP

Regular price ~~£236.31 GBP~~ Sale price £236.31 GBP
OPTOLONG 2" L-Synergy Filter Dual 7nm Narrowband Filter OIII(500.7nm)&SII(672.4nm)

OPTOLONG 2" L-Synergy Filter Dual 7nm Narrowband Filter OIII(500.7nm)&SII(672.4nm)

Regular price £245.52 GBP

Regular price ~~£245.52 GBP~~ Sale price £245.52 GBP
OPTOLONG New Optolong Filter 2-inch L-Quad Enhance Filer Professional L-Quad Enhance Filter (L-QEF)

OPTOLONG New Optolong Filter 2-inch L-Quad Enhance Filer Professional L-Quad Enhance Filter (L-QEF)

Regular price £171.90 GBP

Regular price ~~£171.90 GBP~~ Sale price £171.90 GBP
Svbony SV220 Telescope Filter, H-Alpha & OIII, 7nm Dual-Band 1.25" Filter | Urban Emission Nebula Imaging, 85% Transmission Rate with OD5, H-Alpha (656nm) and OIII (500nm) Wavelengths

Svbony SV220 Telescope Filter, H-Alpha & OIII, 7nm Dual-Band 1.25" Filter | Urban Emission Nebula Imaging, 85% Transmission Rate with OD5, H-Alpha (656nm) and OIII (500nm) Wavelengths

Regular price From £98.99 GBP

Regular price ~~£98.99 GBP~~ Sale price From £98.99 GBP
Astromania 1.25" IR/UV Blocking Filter - Keeps Your Planetary Images Sharp

Astromania 1.25" IR/UV Blocking Filter - Keeps Your Planetary Images Sharp

Regular price £22.25 GBP

Regular price ~~£22.25 GBP~~ Sale price £22.25 GBP
Svbony UV/IR Cut Filter Telescope Filters, 1.25" Telescope Accessories | for Planetary and Moon Observation,Astrophotography with DSLR Cameras, CCD/CMOS Camera Imaging, Blocks UV and IR Wavelengths

Svbony UV/IR Cut Filter Telescope Filters, 1.25" Telescope Accessories | for Planetary and Moon Observation,Astrophotography with DSLR Cameras, CCD/CMOS Camera Imaging, Blocks UV and IR Wavelengths

Regular price From £16.99 GBP

Regular price ~~£16.99 GBP~~ Sale price From £16.99 GBP
Svbony SV220 Telescope Filter, SII & OIII, 7nm Dual-Band 1.25" Nebula Filter, 88% Peak Transmission with OD5 Cut-Off Depth Telescope Accessory, Reduce Light Pollution, for Imaging emission Nebulae

Svbony SV220 Telescope Filter, SII & OIII, 7nm Dual-Band 1.25" Nebula Filter, 88% Peak Transmission with OD5 Cut-Off Depth Telescope Accessory, Reduce Light Pollution, for Imaging emission Nebulae

Regular price From £94.99 GBP

Regular price ~~£94.99 GBP~~ Sale price From £94.99 GBP

Let customers speak for us

from 97 reviews

Fits perfectly, raises the dwarf high enough to clear the clamp screw

David

07/05/2026

OA Skywatcher EQ Wedge Riser v2

You’ll be glad you got it with the filter holder.

I paired this with my OakAstro filter holder to raise the Seestar S50 above the SkyWatcher Star Adventurer Wedge so the S50 rotates freely and the filter holder does not foul the wedge. It’s a simple device but quite important to the overall performance.

Tony Dodd

06/22/2026

A great business to deal with.

Searching for something for my SeeStar I came across Oak Astro. I received fast responses to my questions and a very prompt despatch (and delivery) of goods I ordered. Just the sort of business I like to deal with!

06/16/2026

Oak Astro

Simple and very effective.

It is hard to fault this device! I bought it because I wanted to add different filters to my SeeStar S50 and because I wanted to reduce extraneous light getting in. It works on both counts. I recommend users read the manual as the mounting flap could easily be damaged by not following the publiushed guidance.

Seestar S50 OA-OAKv2

S50 OA -OAKv2

All arrived in good condition, a nice update from the original set,just waiting for dark enough skies to put them to use

D Clarke

Game changer

Great bit of kit, dew shield and filter holder all in one. Its a clever design and a game changer. Make sure you read the accompanying instructions to make the installation and removal easier.

Paul Maddocks

05/30/2026

Superior Quality

All of the accessories are very well made and top quality. My favorite one is the dew shield. It has a little more length than other competitors and the internal flocking really make a difference.

John Walker

05/27/2026

OA-DL-Mini-OAK

Excellent

Excellent quality

Tobias Fredeking

04/24/2026

OA-D3OAK Dwarf 3 Optical Accessory Kit

Excellent Accessory Set for Dwarflab Mini Smartscope

I recently ordered Oak Astro's dew hood,bahtinov focus mask and star diffraction set.
Firstly, I live in New Zealand, about as far away as one could possibly be from Oak Astro, I was highly impressed with the fast delivery time.
Upon inspection, the items delivered are robust, of very high quality and precision manufacture. The threaded components mate perfectly. The dew hood is internally flocked and has absolutely no internal reflections.
Owing to poor viewing conditions (overcast, cloudy nights) I have not yet had the opportunity to test the items on any astro objects, however I have no reason to doubt that they will perform as advertised.
The accessory carry bag is a nice bonus.
In conclusion, I highly recommend this product to other Dwarf Mini users.

Russell Colina

04/15/2026

Great Quality on both the Mini and the D3 items

Great Quality on both the Mini and the D3 items I purchased. Very happy.

Mr Simon Thompson

04/14/2026

Really enjoying using the Dwarf3 accessory kit

Really enjoying using the Dwarf3 accessory kit. Was packaged well, came with a useful storage bag, and shipped quickly. Thanks.

Nancy S.

Easy to use, great results

I've been using the dew shield since I received it, and have been very impressed. Full disclosure: I ordered and have been using itmore as a lens hood than to counter dew as so far I have not been imaging near to the dew point here in France. As a lens hood, it has been excellent and has helped a great deal! The street lights here switch off at 11 PM, but with the shield on my Dwarf Mini I've been able to get images (of clusters) even when the nearest streetlight on the road above is inside the wide-angle camera's field of view. I've also noticed improvements when imaging away from that light, as the hood keeps light from elsewhere in town getting to the lens directly.

I feel that I should also note that, despite the hood blocking part of the wide angle field of view (as was noted in the description), this does not appear to affect the deep sky mode at all. I have not as yet noticed any effect on the ability of the Mini to calibrate, to set up EQ mode, or to find, goto, and track targets.

Derek MacColl

04/07/2026

Dwarf 3 Optical Kit Perfection

Love it. Exactly does what I needed it to do. Excellent Quality.

Barb Arsenault

04/03/2026

Excellent for my Dwarf 3 system

Excellent for my Dwarf 3 system, especially the light shield due to streetlights.

Neil Dyson

03/27/2026

Livraison rapide et conforme

Livraison rapide et conforme , objet de très bonne qualité.
Je recommande !!!👍

Anonymous

03/20/2026

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Let customers speak for us