Visual Filters

These contrast-enhancing filters are designed to block out the wavelengths of light emitted by mercury-vapour light and other common causes of light pollution. 

The O-III narrowband filter is specially designed for the observation of gas and  planetary nebulae.

The narrowband UHC filter isolates the two doubly ionized oxygen lines (496 and 501nm) and hydrogen-beta line (486nm).

Progressively dims the view when observing the Moon or bright planets whilst increasing contrast, reducing glare and increasing the amount of detail to study. 

The Orion Variable Polarizing eyepiece filter acts like a dimmer switch for your telescope, to tone down brightness and accentuate contrast of bright celestial objects.

Reduce glare and increase contrast of the Moon

Blocks night glow and airglow, sodium and mercury emissions (but not UV or IV). 

Blocks all forms of light pollution while passing critical hydrogen-beta and ionized oxygen wavelengths of light.

SkyGlow improves the views of nebulas, galaxies and star clusters, especially when viewing in areas with light pollution from streetlights and sources

This high performance CCD filter transmits only the Hydogen Beta emission line, and therefore is useful for greatly increasing the contrast of objects that glow in the corresponding region of the spectrum, for example the Horsehead, Cocoon and California nebulae.

Colored filters can be used to bring out details on a planet’s surface or its cloud structure.

Comprises 4 x high quality glass colour filters.