Series 4000 Photo-Visual Color Filter #56 Light Green

Excellent for the observation of Martian polar ice caps as well as yellow-tinted dust storms on the Martian surface. Increases contrast of the red and blue regions in Jupiters atmosphere as well as in the cloud belts. Also useful for enhancing lunar detail. #58 Green (24% transmission): Use on telescopes 8" aperture and larger to reject blue- and red-toned structures on the surface of Jupiter and thereby increase their contrast relative to lighter parts of the disc. Also use for the enhancement of Saturns cloud belts and polar regions. Strongly increases contrast of Mars polar ice caps, and increases contrast of atmospheric phenomena on Venus. This filter has a 53% transmission.