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.

In contrast to the general deepsky filters theses filters do not block all light except for the H-alpha wavelength, meaning that the image will contain other colors as well. The emission nebulae and supernova remnants show up more nicely and contrasty on the images.

Available in 1.25" and 2" sizes - the latter ones are recommended for use in correctors and flatteners.

The Astronomik EOS clip filters are designed for the small sensor EOS DSLR cameras and can be mounted in a second. This means that the same filter can be used not only with the telescope but standard objective lenses as well, except for Canon EF-S lenses which are too long.