The moon and starlight filter reduces light pollution and improves observation of the night sky in urban and rural areas.
Variable polarising filters darken vision when observing bright celestial objects such as moon, stars, comets and constellations. The light transmission is variable from 40% to 1%. When you stack two polarising filters together, you will receive a variable ND2-2000 ND filter that can be used freely on the telescope without affecting the focal length at all, and it helps you capture more brilliant star fluxes. Note: The thinner polarising filter must be mounted below the ring polarising filter.
The UHC filter allows emission lines from fog to pass while blocking a large amount of light pollution caused by artificial outdoor light. The filter darkens the sky background and improves the contrast of your images.
Colour planet filters are available in 5 colours: red, orange, yellow, green and blue. Red: lifts Mercury and Venus from the blue sky during the day. Orange - Increases contrast between light and dark areas and penetrates clouds. Yellow: reveals the polar ice caps of Mars. Green: Improves frost spots, surface nebulae and polar projections on Mars. Blue: splits the double star Antares at maximum distance.
The moon and starlight filter can block unwanted light wavelengths of 589nm and improve observation of the night sky in urban and rural areas.
Specifications
Filter thread size: 1.25 inches.
Package contents:
5 x planetary colour filters.
2 x variable polarising filters.
1 x UHC filter.
1 x moon and starlight filter.
1 x 13% Transmissions Moon Filter
1 x filter bag.
1 x cleaning cloth