Celestron Series #2 4 Piece Filter Set (1.25"), Deep Yellow #12, Red #25, Light Green #56 & 96ND-25%

Deep Yellow #12 - 74% T

Moon

Enhance lunar features

Jupiter

Penetrate and darken atmospheric currents containing low-hue blue tones. Enhance orange and red features of the belts and zones. Useful for studies of the polar regions

Mars

Reduce light from the blue and green areas which darken the maria, oases and canal markings, while lightening the orange-hued desert regions. Also sharpen the boundaries of yellow dust clouds

Neptune

Improve detail in larger telescopes (11" and larger apertures)

Saturn

Penetrate and darken atmospheric currents containing low-hue blue tones. Enhance orange and red features of the belts and zones.

Venus

Reveal low-contrast surface features. Comets - Enhance definition in comet tails

Red # 25 - 14% T

Moon

Improves lunar features.

Jupiter

Useful for studying bluer clouds.

Mars

Ideal for observation of the polar ice caps and features on the Martian surface. Sharpens the boundaries of yellow dust clouds.

Mercury

Improves observation at twilight, when the planet is near the horizon. During daylight, it reduces the brightness of the blue sky to enhance surface features.

Saturn

Useful for studying bluer clouds.

Venus

Use during daylight observing to reduce brightness of blue sky. Occasionally deformations of the terminator are visible.

Light Green #56 - 53% T

Moon

Enhances lunar features.

Jupiter

Increases visibility of the Great Red Spot. Useful for observing the low-contrast hues of blue and red that exist in the Jovian atmosphere.

Mars

Excellent for increased contrast of Martian polar caps, low clouds and yellowish dust storms.

Venus

Useful for Venusian cloud pattern studies. Reduces brightness of blue sky during daylight observing.

ND #96 - 25% T - Density 0.6

Moon

Excellent for reducing irradiation, glare and subject brightness. Colors are unaltered, as light is transmitted uniformly over the entire spectrum. Each model performs somewhat differently, depending on the brightness of the moon.

Planets

Stacking in combination with color filters lowers transmission, but retains true color balance for specific applications. Reduces glare on brighter planets and minimizes irradiation.

Binary Stars

Helpful in splitting binary stars, because it reduces glare and diffraction effects around the brighter star of the binary pair.