Effectively reduce the annoying urban light pollution and retain the original colors for night scenes and astrophotography. Greatly improve image quality thanks to the exclusive neodymium glass and 30 layers of NANO coatings on both sides. Resistant to water, oil, dust, scratch, , and fingerprint, and easy to clean. Square filter offers flexibility and avoids vignetting when used with other filters; rounded corners prevent hand injuries when installing filters. Compatible with various lens sizes and brands; holder not included.
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