Telescopes & Astronomy

Suitable for connecting Nikon lens and ZWO 1.25”/31mm/36mm filter wheel

Combine with a suitable TLS-APO Adapter and a DSLR for Digiscoping with a Swarovski Spotting Scope

Designed to be used with ATX and STX Spotting Scopes.

NOTE: This adapter also requires the VPA Variable Phone Adapter to hold your phone. 

• Connect your Canon mirrorless camera to the 8” RASA with one simple solution—no other adapters required.
• Places the camera sensors at the proper backfocus distance for the 8” RASA for pinpoint stars across the entire field of view.
• Uses the camera’s bayonet mount for a secure connection that won’t rotate once installed.
• Made of machined aluminum with black anodized finish.

• Connect your Sony mirrorless camera to the 8” RASA with one simple solution—no other adapters required.
• Places the camera sensors at the proper backfocus distance for the 8” RASA for pinpoint stars across the entire field of view.
• Uses the camera’s bayonet mount for a secure connection that won’t rotate once installed.
• Made of machined aluminum with black anodized finish.

The Sirius Optics M48 T-ring allows you to connect your Canon EOS DSLR camera directly to your telescope for stunning astrophotography. Its wide M48 thread is designed to minimize vignetting, making it ideal for full-frame sensors and ensuring edge-to-edge image quality.

The Sirius Optics M48 T-ring for Nikon lets you seamlessly connect your Nikon DSLR to any telescope with an M48 thread, making it easy to dive into astrophotography. Designed with full-frame sensors in mind, the wide M48 connection minimizes vignetting for cleaner, edge-to-edge images of 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.

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 10mm 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.