Meade ETX-70 to Sony A58 Adapter

So, I got a Meade ETX-70 telescope, which I was really excited about. But pretty quickly I realized that taking pictures with it is difficult — no one sells a Meade to Sony A58 adapter, not even on any 3D printing sites. So, I had to design my own.

It took a couple of months, since I wasn’t the best CAD designer. If you look at my past designs, you’ll see they were more like practice runs to get to this point. The camera weighs nearly 500 grams, and the adapter can easily hold it while tracking celestial objects — I haven’t had any issues with strength so far, so it’s perfectly viable for astrophotography.

I started this project in January 2025, and just finished it in June. I had never learned CAD before, but after lots of research on thread sizes for the Sony A58 camera and the Meade telescope, and many hours of printing and fixing small issues, the adapter works as well as any commercial one.

I’ve also included one of the pictures taken with this adapter, just so you know I’ve actually used it and it works.

Hope you like it. Clear skies!

If you want to read the full story of how it came to this design, read more on : https://ansarsblog.com/2025/06/23/buildingtelescope/

UPDATE
Dec 6 2025 :
A new and improved T-ring is now available. You can check it out here: https://www.thingiverse.com/thing:7224417