Orion 1.25" Mars Observation Eyepiece Filter

The Orion 1.25" Mars Observation Telescope Filter enhances contrast of virtually all surface features. Dielectric coatings transmit violet/blue and orange/red 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. The custom-engineered filter comes with protective plastic case.