Filters

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...

Optolong L-eXtreme F2 Fast Optics Dual Narrowband Optolong L-eXtreme F2 is a dual-band (500.7 nm and 656.28 nm, FWHM=7 nm) narrowband pass filter t...

SVBONY SV133 Filters Wheel 1.25'' Multiple 5-Position The SVBONY SV133 is suitable for 1.25-inch eyepieces and for viewing with a T2-fitted singl...

SVBONY SV183 IR Pass 685nm Filter for Planetary Photography SV183 IR pass filter; Sufficient reduction of seeing effects; heightened contrast; The...

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...

Lunt 40mm Front Mounted Double Stack Filter It’s finally available! The Lunt Solar 40mm Double Stack Hydrogen-alpha Filter. LS40FHa solar filter f...

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 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...

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

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

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 ...

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

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...

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 1.25''/2'' Linear Polarizer Filters 1.25 inch moon filter reduce the amount of light entering the eyepiece and increase the eyepiece contra...

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...

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...

Antlia ALP-T Dual Band 5nm Ha+OIII and SII+Hb Filters Package The Antlia ALP-T dual band 5nm filter is a dual line-pass filter which was designed t...

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

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 ...

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...

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...

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...

Astronomik L-3 UV-IR Blocking Filter Astronomik now offers you a range of three different UV+IR blockers as Luminance filters. The different spectr...

Astronomik L-2 UV-IR Blocking Filter Astronomik now offers you a range of three different UV+IR blockers as Luminance filters. The different spectr...

Shelyak SOL’EX OPTICAL KIT  Sol’Ex optical kit: all the optical elements to make your own Sol’Ex instrument, and make new images of the Sun. ...

Lunt Double Stack Filter for Lunt 80 mm & 100 mm Universal Telescopes Double stacking provides a truly enhanced, high definition view of the Su...

Buckeye Filter Masks for Filter Wheels These Filter Centering Masks will make it easy to center your filters in a filter wheel, and will block any ...