Filters

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...

Antlia Solar Discover 5Å CaK filter (SD-CAK5) The Antlia Solar Discover 5Å CaK assembly incorporates a set of light-reducing filters to reduce sola...

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...

Astronomik SII 6nm CCD Filters This SII-CCD Filter is suitable for imaging of SII-regions from observation sites with light pollution and from dark...

Astronomik H-alpha 12nm CCD Filter The Astronomik H-alpha filter is ideal for imaging HII regions from both light-polluted and dark observation sit...

Sightron LPS-C1 M48 Filter (2") (LPS) Light Pollution Suppression Filter Effectively suppressing white LED sky glow Maintains the good color bal...

Shelyak Power supply 12V/3A  12V (3A) power supply for video camera and our electronic modules (Lhires III, LISA calibration module, Alpy calibrati...

Shelyak Argon-neon Spare Bulbs  Bag of 3 spare argon-neon bulbs for Alpy calibration unit, LISA calibration or Lhires III. In the Box Shelyak Argon...

Shelyak UVEZ Motors     The UVEX is now motorized, and can therefore be used remotely. Motorization:Select the central wavelength of your spectra, ...

Shelyak Alpy & Uvex Photometric Slit 23/200  Special photometric slit for the Alpy 600 spectroscope (to be used with the guiding module) and UV...

Shelyak LHIRES III The Lhires III is THE standard High Resolution reference spectroscopy.Gain access to the smallest details in the spectral lines ...

SVBONY SV132 1.25'' H-Beta 25nm Light Pollution Filter SV132 H-Beta eyepiece filter makes it possible to view the elusive Horsehead, California, a...

Shelyak Alpy 600 The Alpy 600 and Demetra software (developed by Shelyak Instrument for the ALPY 600 spectrograph) will allow you to produce spectr...

Celestron 1.25" UHC/LPR Filter Our 1-1/4" Light Pollution Reduction (LPR) Filters are designed to selectively reduce the transmission of certain wa...

Antlia Imaging Herschel Wedge with 35mm Prism and 1.25'' Cak 3nm Solar Filter The Antlia Solar Wedge (Herschel Wedge design) replaces the standard ...

ZWO Methane CH4 Filter 1.25" The ZWO Methane CH4 Filter 1.25″ is a special filter for photographic use. Its FWHM is 20 nm which is suitable for mos...

ZWO AR Protective Window for ASI ZWO D21 AR protect window Technical Parameter: Diameter: 21mm Type: AR window Thickness: 1.1mm Flatness: 1/4 λ Pro...

Tele Vue Bandmate H-Beta Filter The Tele Vue Bandmate H-Beta Filter passes the aqua colored hydrogen-beta emission lines found in the Horsehead, Ca...

Optolong Narrowband H-Beta filter Opotlong narrowband H-beta filter is designed for nebula observation allowing 12nm bandwidth of light centered on...

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

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

IDAS SHO Narrowband Set (SII, H-a & OIII) IDAS H-alpha 6.8nm. OIII 6.0nm and SII 6.3nm Sets. Available at various sizes and classifications –...

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...

Chroma LoGlow Light Pollution Filter The Chroma LoGlow Light Pollution Filter blocks common spectral lines from lighting sources. This filter provi...

Chroma Jovian Methane Filter The Chroma Jovian Methane Filter is a methane absorption band filter. This filter enhances contrast when imaging objec...

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...