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CLS Filters

 
 

Astronomik CLS filters block the light of the spectral lines of mercury and sodium-vapor street light but allow the largest part of the visible light and H-alpha emissions to pass through. All the important emission lines, as well as the spectral region of light seen with the dark-adapted eye, can pass through the filter. All Astronomik filters with the addition of ''CCD'' in their nomenclature have IR/UV blocking properties. This add-on is essential for cameras without a built-in filter.

With filters designed in all the popular sizes, you are sure to find one to fit your needs. Astronomik filters are highly resistant to scratches and aging effects, as well as high humidity. Guaranteed to be diffraction limited, these filters will not reduce the optical performance of your telescope, therefore stars retain all of their sharpness and clarity! Let a high-quality Astronomik filter improve your astronomical experience today!