Astronomic viewing applications. Moon: Greatly enhances lunar features under dark sky. Jupiter: Useful for Great Red Spot and enhances boundaries between reddish belts and adjacent bright zones. Mars: Very useful during violet clearing and in study of surface features and
polar caps. Saturn: Enhances low contrast details between belts and zones. Venus: For increased contrast of dark shading in upper Venusian clouds. Comets: Brings out best co (less)
