Visual Filters

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  1. 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
  2. Sirius Optics Colour Filter No. 8 Light Yellow 1.25 Inch
  3. Sirius Optics Colour Filter No. 82A Light Blue 1.25 Inch
  4. Sirius Optics Colour Filter No. 25 Red 1.25 Inch
  5. Sirius Optics Colour Filter No. 58 Green 1.25 Inch
  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. 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
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  8. 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
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  9. 2 Inch Deluxe Variable Polarising Moon Filter
    AUD $79.00

    In Stock

    A must have accessory for lunar observing. Standard filter threads screw onto 2in eyepieces.

    Polarising filters can be used to increase contrast in some images, and can be especially useful for daytime photography.

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  10. 1.25 Inch Deluxe Variable Polarizing Moon Filter

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