Telescopes & Astronomy

This handy step-down adapter lets you connect standard M42 T-thread accessories to equipment featuring the larger M48 thread. Simply thread it on to bridge the gap between these two common telescope and camera accessory sizes, making it easy to expand your imaging setup without replacing existing gear.

• T-Adapter for 9.25, 11 & 14” EdgeHD optical tubes. It threads onto the rear cell
• This T-Adapter allows you to attach your 35 mm DSLR camera to the prime focus of your EdgeHD telescope

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 20mm 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.

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.

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 5mm 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.

The Sirius Optics T-Ring for Canon EF-M allows you to connect your Canon EOS-M mirrorless camera to any telescope or microscope equipped with a standard M42 T-thread adapter, opening up the world of astrophotography and microphotography with the gear you already own.

The Sirius Optics 2 Inch Variable Extension Tube features a standard 2" barrel and M42 male thread, allowing you to fine-tune your imaging distance for precise focus when connecting a camera to your telescope. Simply pair it with an M42 T-ring to attach your camera, and adjust the extension length to achieve optimal spacing for astrophotography through any 2" focuser or visual back.