Baader Filters

Isolates Hydrogen-Beta (H-Beta) Emission Line 5.5nm FWHM Narrowband Passband Available in 1.25" & 2" Mounted, 31/36/50.4mm Round Unmounted and...

6.5nm FWHM Bandpass for O-III Optimized for f/2 to f/3.5 High-Speed Optical Systems Available in 1.25" & 2" Mounted, 31mm, 36mm, 47.4mm (FCCT)...

Targets C2 Swan Bands in comet gas tails 15nm bandpass for high-contrast views O-III parallel transmission for nebula observation Available in 1.2...

SLOAN/SDSS i' Standard: Conforms to the standardized Sloan Digital Sky Survey photometric system for consistent, comparable scientific data. Pho...

Conforms to the Sloan Digital Sky Survey (SDSS) photometric system Includes five filters: u' (ultraviolet), g' (green), r' (red), i' (infrared), a...

Conforms to the SLOAN/SDSS y' photometric standard Designed for scientific magnitude measurements Ideal for variable star and exoplanet transit re...

Conforms to the scientific SLOAN/SDSS r' photometric system Engineered for professional and amateur astronomical research Available in 8 formats, ...

Photometric filter for the SLOAN/SDSS z-s' bandpass Conforms to the Sloan Digital Sky Survey photometric system standard Enables calibrated, scien...

Standardized SLOAN/SDSS u'-band photometric filter Isolates the near-ultraviolet (UV) spectrum for scientific analysis Designed for repeatable, hi...

SLOAN/SDSS g' Bandpass: Conforms to the modern standard for astronomical photometry. Photometric Grade: Produces scientifically valid data for r...

Available in 6 distinct colors for targeted planetary observation Planeoptically polished to 30 arcseconds for zero image degradation 7-layer anti...

889nm Center Wavelength 8nm Bandwidth (FWHM) Targets Methane Absorption Band High-Contrast Planetary Imaging 1.25" Filter Format Description FA...

Reduces violet/blue color fringing in achromatic refractors Blocks unfocused near-infrared (NIR) light for sharper digital images Maintains a natu...

Designed for Canon EOS 350D, 10D, 20D, and 30D DSLRs Improves Spectral Transmission for Astrophotography Unlocks Sensitivity to Hydrogen-Alpha (Hα...

Conforms to the Johnson-Cousins/Bessel U-Band Photometric Standard Designed for Scientific Photometry of Variable Stars and Stellar Classification...

Delivers the absolute highest contrast views of many diffuse and planetary nebula. For many objects, the Baader O-III reveals a level of intricate ...

Designed for Canon EOS 300 DSLR Astro-Conversion Dramatically Improved Spectral Transmission for Astrophotography Unlocks Critical Hydrogen-Alpha ...