Telescopes & Astronomy

Slimline adapter with M48 male thread on one side and M42 female thread on the other. Learn More

The Sirius Optics Colour Filter No. 8 Light Yellow (1.25") enhances planetary detail by improving contrast on Jupiter's red and orange belt features and bringing out the blue Maria on Mars. It also reduces scattered light and highlights yellow dust clouds, making it an essential filter for dedicated planetary observers.

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• For 1.25" eyepieces

Enhances:

• Details of cloud belts and Great Red Spot on Jupiter
• Atmospheric clouds and polar caps on Mars
• Feature contrast on the Moon by reducing glare
• Cloud belts and rings on Saturn

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The Sirius Optics No. 25 Red Colour Filter (1.25") blocks nearly all blue and green light, delivering strong contrast for planetary observation. Ideal for revealing detail in Jupiter's and Saturn's cloud bands, it truly excels at bringing out the polar ice caps of Mars with exceptional clarity.

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The Sirius Optics No. 58 Green 1.25" colour filter effectively blocks red and blue wavelengths to boost contrast when observing Jupiter's atmospheric features and Saturn's cloud belts. It's also an excellent choice for enhancing lunar surface detail, making it a versatile addition to any planetary observer's filter set.

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The Sirius Optics T-Adapter seamlessly connects your DSLR or mirrorless camera to any 2-inch focuser, visual back, or diagonal for prime-focus astrophotography. Featuring a standard M42 thread on one end and a 2-inch barrel on the other, it pairs with any compatible M42 T-ring to get you imaging through your telescope in seconds.

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This Sirius Optics 2-inch SCT eyepiece holder features a female SCT thread and a non-marking brass compression ring, allowing you to securely attach 2-inch diagonals, eyepieces, and T-adapters to your Schmidt-Cassegrain telescope. A must-have visual back for upgrading to wider-field 2-inch accessories.

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The Sirius Optics 1 Inch Extension Tube adds an extra inch of back travel to your focuser, making it ideal for short-range terrestrial viewing and astrophotography applications. Featuring a standard 1.25-inch barrel with filter threads and a thumbscrew for secure attachment, this durable anodized aluminum adapter is a versatile addition to any telescope setup.

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This variable projection camera adapter allows you to take photos through a slim 1.25" eyepiece. Use with a M42 T-ring.

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