Filters

Baader 6.5nm Narrowband Filters – CMOS-optimized (H-alpha, OIII, SII) Baader H-alpha / O-III / S-II Narrowband Filter Set - Precision Grade 6.5 nm...

Baader 3.5 / 4nm f/2 Ultra-Highspeed Filters – CMOS-optimized (H-alpha / O-III / S-II) Baader has released a whitepaper guiding you how to select t...

Celestron EclipSmart Solar Filter for PowerSeeker 70AZ/EQ and Travel Scope 70 Telescopes ISO-CERTIFIED SOLAR TELESCOPE FILTER: Certified to compl...

Lunt Internal Double Stack Module for LS80THa SFPT – Internal Double Stack Module for Lunt 80 mm & 100 mm Universal Day and Night Telescopes No...

Celestron 1.25" Neutral Density Moon Filter The Celestron Neutral Density Moon Filter attaches to a 1.25” eyepiece to lower the amount of light ent...

Antlia IR Pass 850nm planetary 1.25" filter The Antlia IR Pass 850nm filter is an absorptive filter that allows infrared light with wavelengths of ...

Antlia SHO 7nm Prime Narrowband Pro Filters Antlia SHO Prime narrowband filter optimizes the FWHM (full width half maximum) to 7nm bandpass. The su...

Antares 2" Neutral Density Filter Neutral density filters can reduce brightness across the visual spectrum without losing resolution, enhancing lun...

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

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 ...

Astronomik Deep-Sky RGB filter Astronomik has added a new range of RGB filters to its line of World class products. The new Deep-Sky RGB filters ar...

Astronomik H-alpha 12nm MaxFR XT Clip-Filter The Astronomik H-alpha filter is ideal for imaging hydrogen nebulae. It works from both light-pollut...

QHY Minicam8 Filter Sets The miniCAM8 IMX585 filter kits are purpose-built all-in-one solutions designed for seamless integration with the camera’s...

Lunt 60mm Ha Etalon Filter LS60FHa H-Alpha Filter, 60mm front-mounted non-obstructed hydrogen-alpha filter for use on a wide range of telescopes! ...

Shelyak Alpy 200 Switch Module Already own an Alpy 600, and want to switch easily from one instrument to another (Alpy 600 to Alpy 200 and ...

Sightron IR640 Pro II IR Pass Filter  Japanese-made IR-pass filter. Fully blocking below 640nm.  Steep cut-off line & high transmission rate.  ...

Antares 1.25" 5-Position Manual Filter Wheel This filter wheel will accept (5) 1.25" filters and has fittings for both 1.25" visual and M42 camer...

Daystar Combo Quark 2.8X Telecentric Barlow This  brand new QUARK optimized accessories is designed to fit our classic Combo Quark Hydrogen Alpha F...

Daystar Combo Quark 4.3X Telecentric Barlow This  brand new QUARK optimized accessories is designed to fit our classic Combo Quark Hydrogen Alpha F...

Antares Filter Neutral Density 13% - USED This filter is in excellent condition. Neutral density filters can reduce brightness across the visu...

Baader UBVRI Bessel Filters V-Filter – Photometric Baader Bessel-UBVRI Bandpass Filter Set, suitable from f/15 to f/1.8 Classic photometric filter...

Explore Scientific Nebula Filter UHC 2.0-inch   Explore Scientific Nebula Filter 2.0" UHC Range from 458nm to 508nm with peak at 488nm. Transmissio...

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

Explore Scientific Nebula Filter UHC 1.25-inch   Explore Scientific Nebula Filter 1.25" UHC Range from 458nm to 508nm with peak at 488nm. Transmiss...

Player One UVenus 1.25″ UV-PASS Filter E-series Player One E-series is an upgrade series of S-series, using high quality optical glass substrate an...

Baader AstroSolar Spotting Scope Filter OD 5.0 (50mm - 150mm) This family of filters offers a stable and rigid solution for all spotting scopes, ca...

IDAS Ha & OIII Dusk to dawn (DTD) Filters A new generation filter covering multiple objects including comets, galaxies, the Milky Way, and emis...

Seymour Threaded Helios Solar Glass Camera Filters  If you want to capture stunning images of the sun and its features, you need a solar filter t...

Shelyak Alpy 200 Spectroscope The little brother of the ALPY 600 for spectra of very faint objects with a resolution of around R=130 ! The Al...

Seymour Hyperion Binocular Solar Filters (Pair) This pair of premium solar filters are safe for solar viewing when mounted on binoculars. They are ...

Shelyak High Voltage Power ConnectorThis connector is to be used with the high voltage power supply (ref. PF0082) and allows you to make a specific...