Astronomik CLS filter causing light flare around bright stars. Is this a defect of the filter or am I doing something wrong? (Ignore the tree branches, it was just a test shot.) :
Astronomik CLS Filter
Astronomik CLS Filter
Astronomik CLS Light Pollution Clip Filter for Canon Cameras - Member Equipment Reviews - Stargazers Lounge
10 Light Pollution Filters for Astrophotography in the City
Astronomik CLS EOS Clip Filter Review - YouTube
Astronomik CLS CCD Clip-Filter EOS M APS-C (For Full Spectrum Cameras)
Astronomik CLS CCD Light Pollution Reduction Filter in Canon EOS-R XL Full Frame Clip Format | High Point Scientific
Astronomik - CLS Light Pollution Filter - Canon EOS Full Frame Clip | Telescopes
Astronomik CLS Clip-Filter Nikon Z XL | OPT Telescopes