Filters

Antares UHC Filter UHC is a filter that blocks the visual spectrum except for wavelengths between 480nM and 510nM. Often called a Nebular or ALP (a...

Baader Fringe Killer Filter Achromat owners rejoice! Baader Planetarium has taken minus violet filtration to a new level. The Fringe Killer brings ...

Lunt 60mm Ha Etalon Filter The Lunt LS60FHa is a 60 mm aperture (no central obstruction) integrally tuned etalon for use on a customer supplied ref...

Baader IR-Pass Filter (685 nm) Baader IR-Pass Filter HWB 685nm Reduces the effect of seeing resulting in a much sharper image. Ideal for imaging a...

Astronomy Plus 1.25" Lunar and Planetary Color Filter Set Color filters are valuable tools in astronomy for enhancing the details and contrast of c...

Antlia ALP-T Dual Band Ha&OIII 3nm + SII&Hb 3.5nm 2" Filter Set Ha&OIII 3nm The Antlia ALP-T Dualband 3nm Ha&OIII Filter is a dual ...

Baader Solar Continuum Filter 7.5nm (540nm) For Visual and Photographic Observations of the Sun Baader 7.5 nm Solar Continuum Filter, CWL 540nm A ...

ZWO Seestar S50 Solar Filter Providing the ZWO Seestar with the opportunity to image the sun is this ZWO Black Polymer Solar Filter. Made of high q...

Antlia SHO 3nm Narrowband PRO Highspeed Filters Antlia's SHO 3nm Pro Highspeed Filters are further optimized for high-speed imaging systems by pre-...

Player One Photosphere 7.5nm 1.25″ Filter E-series  Player One E-series is an upgrade series of S-series, using high quality optical glass substrat...

Shelyak Star Analyser 100 The Star Analyser 100 is a high efficiency 100 lines/mm transmission diffraction grating, blazed in the first order. It i...

Celestron 1.25" Moon Filter The Moon has the distinction of being the most often viewed celestial object through backyard telescopes. It is undoubt...

ZWO LRGB Filters The new ZWO LRGB Filters  are designed to approximately equalize the flux of mono sensors. The LRGB filters have a better transmis...

Optolong UHC Light Pollution Filter The UHC (Ultra High Contrast) broadband filter is designed to improve the visibility of various deepsky objects...

Chroma 3nm OIII Filter The Chroma 3nm OIII Filter isolates the 500.7nm primary emission line of doubly ionized oxygen. After H-alpha, this is the n...

Baader Contrast Booster Filter Eliminates the color error of economy refractors. Clearly puts the real quality of the lens on display. Removes the...

Svbony SV220 7nm Dual-Band Nebula Filter SII & OIII The SV220 SII & OIII  7nm is a Duo Band Filter. It is designed to be used in combinati...

Baader SLOAN/SDSS Filters – Photometric   Baader SLOAN-ugriz' Bandpass Filter Set, suitable from f/15 to f/1.8 SLOAN/SDSS (ugriz’) photometric fil...

SVBONY SV199 ADC 1.25" Atmospheric Dispersion Corrector FMC Prism Lens: The prism lens adopts double-sided coating technology to reduce light lo...

Astronomik UHC-E Filter The Astronomik UHC-E filter is our budget filter for deep-sky observation of emission nebulae and comets under light pollut...

Shelyak SOL’EX OPTICAL KIT  With Sol’Ex (Solar Explorer), build your own 3D-printed solar imaging instrument. Please note: this kit contains on...

Antlia 2.5nm SHO Ultra Filter 2’’ & 36mm The Antlia SHO 2.5nm Ultra series filters are made with quartz glass and undergo precisely controlled ...

SVBONY SV160 2" SII Filter 7nm Narrow-Band for CCDs  SVBONY Sulfur II 7nm Extra Narrowband Filter transmits a 7nm bandwidth of light that is cente...

Astrozap Baader Solar Material Make your own! Baader Solar Material Size Choice: 177mm x 177mm (7" x 7") 250mm x 250mm (10" x 10") 250mm x 500...

Antlia IR Pass 685nm planetary 1.25" filter The Antlia IR Pass 685nm filter is an absorptive filter that allows infrared light with wavelengths of ...

Antlia H-beta and OIII Filter – 1.25″ Antlia HB-OIII filter is engineered specifically for night visual nebulae observation at a high contrast and ...

Antares 1.25" Variable Neutral Density Filter 3-40% Neutral density filters can reduce brightness across the visual spectrum without losing resolut...

Daystar Energy Rejection Filter ERF for Refractor The Daystar Energy Rejection Filter for Refractor reduces the heat load on your filter assembly b...

Chroma 3nm SII Filter The Chroma 3nm SII Filter isolates the spectral emission of singly ionized sulfur atoms, also common in nebulae. Emission is ...

Chroma 3nm H-alpha Filter The Chroma 3nm H-alpha Filter is essential for imaging nebulae and other objects which are rich in ionized hydrogen. At 6...

Celestron H-alpha H-beta OIII imaging filter, RASA 8 Bring out the best in your nebulae astroimages with the H-alpha H-beta OIII (Hα-Hβ-OIII) Imagi...

Astronomik CLS Filter The Astronomik CLS Filter is a budget filter for visual observation, Black & White photography and CCD photographs of neb...

Vaonis Filter Bundle Sale - Limited Time Only For a limited time only ! Two available filter bundles of the popular filters from Vaonis.    Vaonis ...

Baader AstroSolar Photo Film OD 3.8 AstroSolar Photo Film (imaging only), telescope quality, Optical Density OD = 3.8 Digital solar imaging at hig...

Astronomik OWB-CCD Type 3 filter The OWB filter would usually not be designated as an "astronomical" filter. The intention is to enable converted D...

Astronomik ProPlanet 742 IR-pass filter Ideal filters for the reception of the moon and planets, notably Mars, with telescopes from 6" (150mm) aper...