The Astronomik CLS is our inexpensive solution for the visual
deep-sky observation, b&w photography and CCD observation. The
Astronomik CLS filter is the right filter to gain the contrast of
nearly all objects under light-polluted skies with all sizes of
telescopes. Due to the design of the transmission curve the filter
reduces the sky background and gas nebulae planetary nebulae as well
as open clusters, globular clusters and galaxies are seen better. The
Astronomik CLS blocks the emission of Hg and Na streetlights as well
as all Skyglow-lines . All major emission lines from deep-sky objects
are passed without suppression. As you can see from the chart below
the most important part of the eye's night-sensitive region is passed
with maximum transmission. 

The transmission curves of the Astronomik RGB filters are optimized
for the CCD-astronomy: With these filter-set, we finally can offer
filters that make color proof pictures of all objects possible.
Continuum radiators like stars and galaxies as well as objects that
shine only in single lines (e.g. planetary nebulae), are reproduced
in their true colors. Because of the design of the band pass of the
filters, the color sensitivity of the human eye is optimal
reproduced. You get CCD- pictures, that show the object optimal in
his colors, just as if you would see it, if your eye would be
sensitive enough. 

These new filters serve particularly the needs of the digital
photographer imaging the solar system with electronic cameras or
Webcams (with IR-block filter removed) at long-focus telescopes.

Premium multi-layer interference filters, the finest obtainable. Use
broadband ("B") filters to block most forms of light pollution; use
narrowband ("N") filters in heavily light-polluted areas for for
extremely high-contrast observing of faint nebulae.

Premium multi-layer interference filters, the finest obtainable. Use
broadband ("B") filters to block most forms of light pollution; use
narrowband ("N") filters in heavily light-polluted areas for for
extremely high-contrast observing of faint nebulae.

Observe diffuse emission and planetary nebulae as you never thought
possible! Exclusive Meade 60-layer interference coating technology
isolates the 496nm and 501nm O-III lines to tremendously enhance
observable nebular structural detail in all telescopes.

An Effective Weapon for Combatting Bright Skies, Bad Contrast

Dramatically Improves Views of Emission and Planetary Nebulas

For slight to moderately light-polluted areas.

Enhance your deep sky viewing with the latest in multi-layer coating
technology. Over three years in development. Our filters transmit
desired wave-lengths in a very steep slope vs. gentle transition
slopes in competitive brands. This means better contrast and overall
performance.

For Horsehead, California nebula and other faint nebulae.

Enhance your deep sky viewing with the latest in multi-layer coating
technology. Over three years in development. Our filters transmit
desired wave-lengths in a very steep slope vs. gentle transition
slopes in competitive brands. This means better contrast and overall
performance.

For heavily light polluted areas.

Enhance your deep sky viewing with the latest in multi-layer coating
technology. Over three years in development. Our filters transmit
desired wave-lengths in a very steep slope vs. gentle transition
slopes in competitive brands. This means better contrast and overall
performance.

For diffuse and planetary nebulae

Enhance your deep sky viewing with the latest in multi-layer coating
technology. Over three years in development. Our filters transmit
desired wave-lengths in a very steep slope vs. gentle transition
slopes in competitive brands. This means better contrast and overall
performance.