MSM Light Pollution Filter is available for Pre-order now, the ship day will be at the endo of Dec. 2022
Please feel free to contact our firstname.lastname@example.org if you have any questions.
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Filter Type: Light Pollution Filter
Diameter: 82 mm
Glass only:2 mm
Glass with the ring: 5.5 mm
Material: Didymium glass with multi-coating
Weight: 23 g
How does MSM Light Pollution Filter Work
This light pollution filter is made of a special glass called didymium glass, with multi coating
This filter can significantly reduce the transmission of light from sodium vapor and mercury vapor lamps, which are mainly located in the range from 575nm to 600nm wavelengths, please refer to the chart below. Sodium vapor and mercury vapor lamps, commonly used in street lighting and industrial lighting, emit yellow and orange lights from the ground to the sky, ruining the nightscape views and pictures. So light with wavelengths from 575nm to 600nm is the main cause of light pollution.
This filter is able to greatly block the wavelengths from 575nm to 600nm, helping the camera get the correct color of the night sky and landscape. With the help of the filter, the images with the right color can also save a lot of bother from after-processing.
The filter does not add blue color or any other colors to the images, it just stops the wavelengths of the polluting lights. The contrast from the sky to the ground will be enhanced, and the true and beautiful colors of the landscape will be restored.