Three ND filters 0.3 / 50%, 0.6 / 25% and 0.9 / 13% and a Moon & Sky Glow filter enable you to choose the perfect filter for your visibility. The Sky Glow Filter offers a high-contrast view of the moon surface and improves the observation of deep sky objects in light-dirty sky. Including case and moon map. The Moon & Sky Glow filter selectively reduces the light permeability in different wavelengths and significantly improves the contrast for observing the moon. This filter gives the moon a very light purple color. In a light-dirty sky, the Moon & Sky Glow filter offers a certain contrast reinforcement when looking at deep sky objects, since the filter blocks a few wavelengths that are connected with common forms of light pollution, e.g. sodium and low-pressure road lamps.
