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  1. Sirius Optics Colour Filter No. 25 Red 1.25 Inch
  2. Sirius Optics ND96 0.6 Neutral Density Moon Filter 1.25 Inch
    AUD $19.00

    In Stock

    • For use with 1.25” eyepieces.
    • More light transmission than 13%, making it great for planets.
    • Reduce glare from bright objects such as the Moon, Venus, Saturn, and Jupiter.
    • Accentuate subtle detail for the Moon and planets
    • Polar ice caps of Mars in large telescopes
    • Limb hazes and terminator clouds of Mars
    Learn More
  3. Sirius Optics ND96 0.9 Neutral Density Moon Filter 2 Inch
    AUD $39.00

    In Stock

    • For use with 2” eyepieces.
    • One of the essential eyepiece filters for visual astronomy.
    • Reduce glare from bright objects such as the Moon, Venus, and Jupiter.
    • Accentuate subtle detail for the Moon and planets
    • Polar ice caps of Mars in large telescopes
    • Limb hazes and terminator clouds of Mars
    Learn More
  4. Sirius Optics Colour Filter No. 23A Light Red 1.25 Inch
    AUD $19.00

    In Stock

    • For 1.25" eyepieces
    • Polar regions and Cloud belts of Saturn and Jupiter
    • Surface Maria and plains on Mars
    • Sky/planet contrast for Mercury and Venus
    Learn More
  5. Sirius Optics ND96 0.9 Neutral Density Moon Filter 1.25 Inch
    AUD $19.00

    In Stock

    • For use with 1.25” eyepieces.
    • One of the essential eyepiece filters for visual astronomy.
    • Reduce glare from bright objects such as the Moon, Venus, and Jupiter.
    • Accentuate subtle detail for the Moon and planets
    • Polar ice caps of Mars in large telescopes
    • Limb hazes and terminator clouds of Mars
    Learn More
  6. Sirius Optics Colour Filter No. 21 Orange 1.25 Inch
    AUD $19.00

    In Stock

    • For 1.25" eyepieces

    Enhances:

    • Dust storms, surface plains and Maria on Mars
    • Cloud belts, polar regions, loops, festoons, and ovals on Jupiter
    • Cloud belts and polar regions on Saturn
    Learn More
  7. Sirius Optics Colour Filter No. 58 Green 1.25 Inch
  8. Sirius Optics Colour Filter No. 82A Light Blue 1.25 Inch
  9. Sirius Optics Colour Filter No. 8 Light Yellow 1.25 Inch
  10. Sirius Optics Colour Filter No. 38A Blue 1.25 Inch
    AUD $19.00

    In Stock

    • Fits 1.25" eyepieces

    Enhances:

    • Clouds and atmospheric features of Venus
    • Atmospheric clouds and polar ice caps on Mars
    • Cloud belts and moon transits of Jupiter
    • Cloud belts on Saturn
    Learn More

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