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Craft | (Double-sided) AR coatingscra+ Super Waterproo and anti-oil |
Mirror circle | Aluminum/Copper |
Printing | Laser engraving or screen printing |
Material | Neodymium glass |
Lens height | 3.3mm,5.5mm,6.7mm,7.0mm(Thickness can be customized) |
Mirror ring pattern | Can be customized |
New process | IR-CUT coating can be added |
shape | Round, square or custom made |
name | night sky camera filter for light pollution reduction |
Application | The night sky filter can filter out artificial lighting like sodium vapor lamps which are commonly used in street lighting and thus increase contrast and practically eliminates color cast caused by urban light pollution |