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![Optolong CLS Filter - Clip filter for Canon EOS APS-C Cameras [OPTO-APS-EOS-C-CLS] - DSLR Filters - O'Telescope](https://content.invisioncic.com/r253704/monthly_2020_02/s-l300.jpg.fb77f6228c0792b713fea249955b8c8a.jpg "Optolong CLS Filter - Clip filter for Canon EOS APS-C Cameras [OPTO-APS-EOS-C-CLS] - DSLR Filters - O'Telescope")
Optolong CLS Filter - Clip filter for Canon EOS APS-C Cameras [OPTO-APS-EOS-C-CLS] - DSLR Filters - O'Telescope
Astronomik CLS Filter
Optolong CLS (City Light Suppression) broadband filter is designed to improve the visibility of various deepsky objects.-Optolong Optics Co.,Ltd.
