Skywatcher Light Pollution Filter. Wavelength chart

The Skywatcher light pollution filter helps cut out mercury-vapour light. In other words, the light given off by street and house lights. The end result is that you can cut through the light pollution to aid views of the heavens.

Nothing beats getting away in to the countryside, away from light pollution. But if you have no option but to stay where you are, then the Skywatcher light pollution will certainly help.

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