Telescopes & Astronomy

The Sirius Optics Plössl 30mm eyepiece delivers a wide 50° apparent field of view, making it a versatile choice for both deep-sky and planetary observation. Its 1.25-inch barrel fits standard telescope focusers, and the 30mm focal length provides comfortable eye relief ideal for extended viewing sessions.

The Sirius Optics Plossl 12.5mm eyepiece delivers crisp, clear views at a mid-range magnification, making it an excellent all-around choice for lunar, planetary, and deep-sky observing. This affordable 1.25-inch eyepiece features the trusted Plossl design with fully coated optics, offering great value for beginners and seasoned astronomers alike.

The Sirius Optics 25mm Extension Tube extends the optical path of your 1.25-inch eyepieces and accessories, helping you achieve precise focus when your telescope's focuser lacks sufficient inward travel. Lightweight and easy to use, it simply threads between your eyepiece and focuser for a quick, secure fit.

SIRIUS 17CM VIXEN DOVETAIL BAR

The Sirius 3x Barlow lens triples your telescope's magnification, letting you explore lunar craters and planetary details with stunning clarity. Its fully multi-coated, 3-element apochromatic design minimizes chromatic aberration for crisp, sharp images, while the built-in M42 thread doubles as a T-adapter for easy DSLR or SLR camera attachment.

The Sirius Optics 1.25 Inch to M48 Adapter lets you seamlessly connect 1.25-inch eyepieces and accessories to M48-threaded components, expanding your telescope's versatility with a simple, lightweight aluminium construction built to last.

The 2 Inch to M48 T Adapter lets you easily connect M48 T-rings to any standard 2-inch eyepiece holder, bridging your telescope and camera for stunning astrophotography. Built from durable aluminum, this lightweight adapter ensures a secure, precise fit so you can focus on capturing the night sky.

Getting your back-focus distance right is essential for sharp, well-corrected astrophotography and sometimes you need more than thin shims to bridge the gap. This M48 x 0.75mm aluminium alloy spacer ring provides 15mm of solid, threaded spacing to help you build out your imaging train with precision. Also available in various sizes to suit your specific setup requirements.