ORION 5599 1.25-INCH MARS OBSERVATION EYEPIECE FILTER IN SOUTH AFRICA

The custom-designed Mars Observation filter enhances contrast of virtually all surface features. Dielectric coatings transmit violet/blue (less than 505nm) and orange/red (greater than 615nm) wavelengths where detail is rich, while blocking overbearing yellow/green (515nm-615nm) wavelengths. Polar icecaps appear more sharply defined, and differences in landscape shading are nicely resolved. Polar hazes and cloud cover become visible. The filter's high transmission makes it effective even in small telescopes. Custom-engineered filter comes with protective plastic case.