60040118
New product
2 Item Items
$ 64
$ 75
-15%
All the important emission lines, as well as the spectral region that the very well dark adapted eye can see, can pass through the filter.
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The Nightsky CLS is an excellent filter for black & white and color imaging of nebulae, galaxies and star clusters with astronomical instruments of any size. By blocking the spectral lines of mercury and sodium-vapor lamps, and letting the largest part of the visible light and H-alpha emissions pass, the CLS filter will effectively block out most surrounding light pollution, eliminating that annoying orange glare.
The filters are optimized for use with filter to aperture ratios of 1:3 to 1:15. By remaining within these aperture ratios, aberration and comma are eliminated.
Card Code | 8001510933 |