Astronomik filters agains light pollution
The Astronomik filters against light pollution increase the contrast between deep-sky objects and the sky background and are therefore ideal for photography and observation under light-polluted skies.
The Astronomik filters against light pollution are designed to block interfering light from artificial light sources such as streetlights and LED lamps as well as all lines of natural airglow. At the same time, they allow as much light as possible from astronomical objects to pass through.
The stronger the light pollution, the narrower the Full-Width-Half Maximum (FWHM) of the filter should be in order to achieve maximum contrast. The Astronomik filters against light pollution can be sorted from narrow to wide as follows: UHC, UHC-E, CLS and CLS-CCD.




The Astronomik CLS and CLS-CCD filters are suitable for all deep-sky objects, while the Astronomik UHC and UHC-E filters are primarily intended for nebulae with emission lines. The transmission range of the Astronomik UHC-E filter also includes spectral lines that enhance the observation of comets.
The Astronomik UHC, UHC-E and CLS filters are designed for use with unmodified cameras or astro-modified cameras.
The Astronomik CLS-CCD filters are specially developed for cameras that are sensitive in the infrared (IR). The integrated IR-blocking layer makes these filters perfect for Full-Spectrum modified system and DSLR cameras as well as for CMOS and CCD cameras.
You can achieve a good colour balance with the filters against light pollution by manually adjusting the white balance in daylight and then shooting at night using the settings you have obtained.
Detailed insights into each filter’s specific applications can be found on the individual product pages.
Astronomik CLS Clip-Filter Nikon Z XL
SKU: 10213082
Astronomik CLS CCD Clip-Filter Sony alpha 7
SKU: 10205083
Astronomik CLS CCD Clip-Filter Nikon Z XL
SKU: 10213083
Astronomik CLS Clip-Filter EOS R XL
SKU: 10212082
Astronomik UHC Clip-Filter Nikon Z XL
SKU: 10213085
Astronomik CLS CCD 36mm
SKU: 10208536
Astronomik CLS Clip-Filter EOS XL
SKU: 10202082
Astronomik CLS CCD Clip-Filter EOS R XL
SKU: 10212083
Astronomik UHC XT Clip-Filter EOS APS-C
SKU: 10203085
Astronomik UHC Clip-Filter Sony alpha 7
SKU: 10205085
Astronomik CLS Clip-Filter EOS APS-C
SKU: 10201082
Astronomik CLS CCD Clip-Filter EOS APS-C
SKU: 10201083
Astronomik CLS CCD Clip-Filter EOS M
SKU: 10204083
Astronomik UHC Clip-Filter EOS R XL
SKU: 10212085
Astronomik UHC-E Clip-Filter Sony alpha 7
SKU: 10205086
Astronomik UHC-E Clip-Filter Nikon Z XL
SKU: 10213086
Astronomik CLS Clip-Filter Sony alpha 7
SKU: 10205082
Astronomik CLS CCD Clip-Filter EOS XL
SKU: 10202083
Astronomik CLS CCD Clip-Filter Nikon XL
SKU: 10210083
Astronomik UHC Clip-Filter Pentax K-1
SKU: 10211085
Astronomik CLS 50mm
SKU: 10213550
Astronomik UHC-E Clip-Filter EOS M
SKU: 10204086
Astronomik UHC-E Clip-Filter Nikon XL
SKU: 10210086