Light Pollution Filters

For Solar Observation use only in combination with Baader AstroSolar Safety Film! Eliminates the color error of economy refractors. Clearly puts th...

Selective contrast filter, for all reflector and refractor telescopes Filters out specific wavelengths, especially those caused by streetlight and...

The Baader Planetarium UHC-S Nebula filter excels at delivering a high-contrast and natural view of emission nebula - without excessive dimming and...

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

FeaturesThe 1-1/4" OIII narrowband filter isolates just the two doubly-ionized oxygen lines (496 and 501nm lines) emitted by planetary and emission...

Features The 2" OIII narrowband filter isolates the two doubly-ionized oxygen lines (496 and 501 nm lines) Filter has ultra-hard, vacuum-deposited ...

FeaturesOur 1-1/4" Light Pollution Reduction (LPR) Filters are designed to selectively reduce the transmission of certain wavelengths of light, spe...

FeaturesOur 2" Light Pollution Reduction (LPR) Filters are designed to selectively reduce the transmission of certain wavelengths of light, specifi...

Blocks common spectral lines from lighting sources. This filter provides balanced color for the visible spectrum while blocking most emission from ...

Explore Scientific Nebula Filter CLS - 1.25"

Explore Scientific Nebula Filter CLS - 2.0"

Explore Scientific Nebula Filter H-Beta - 1.25"

Explore Scientific Nebula Filter H-Beta - 2.0"

Explore Scientific Nebula Filter Oxygen III - 1.25"

Explore Scientific Nebula Filter Oxygen III - 2.0"

Explore Scientific Nebula Filter UHC - 1.25"

Explore Scientific Nebula Filter UHC - 2.0"

Optolong L-Pro is multi-bandpass filter which offers better color balance by maximizing the transmission band. The balanced transmission allows ast...

Optolong UHC with narrower passband provides higher contrast. Thus it is more suitable for urban environment where you suffer from severe light pol...

Multi-bandpass filter for astrophotography 48mm thread-on design for easy attachment Description The William Optics STC Ultra ...