Enhance low-contrast features between the belts and zones. Very useful during the violet clearing. Useful for observing the low-contrast hues of blue and red that exist in the Jovian atmosphere. Useful for Venusian cloud pattern studies. Reduces brightness of blue sky during daylight observing.
Colors are unaltered, as light is transmitted uniformly over the entire spectrum.
Each model performs somewhat differently, depending on the brightness of the moon. Reduces glare on brighter planets and minimizes irradiation. This star finder is best designed for night time, and outdoor use. Major stars are printed in luminous ink which glows in the dark. More than 1000 stars and deep sky objects are listed and charted.