Astronomik CLS-CCD deepsky filter (1.25")

Astronomik CLS-CCD deepsky filter (1.25") for astrophotography.

The Astronomik CLS CCD is suitable under light-polluted skies for DSLR Cameras, which have been remodeled for astronomical use. The filter enhances the contrast between all deep-sky objects and the background. 

The CLS-CCD Filter enhances the contrast between astronomical objects and the background. Due to the wider transmission curve compared to UHC filters, a greater amount of light will pass the filter. Stars will be less dimmed. This filter has been optimized to block as much spurious light as possible and simultaneously provide the best performance for 'useful' light. A good filter for DSLR-, CCD- and film b/w-photography as well as observation of deep-sky-objects with telescopes or photo lenses of all aperture f/2 and above.

The CLS filters are general purpose deepsky filters which blocks the light from Hg and Na lamps, but transmits all the other wavelengths.

They work as a contrast enhance filter for emission, planetary nebulae and supernova remnants. They're also work for all other objects with wider spectrum as well, like stellar clusters, galaxies, open- and globular clusters if our sky is light polluted.