From ~$127.01
2 stores
This adapter allows you to connect the PrimaLuceLab ESATTO 3" motorized focuser to GSO/Orion/TPO Ritchey-Chretien telescopes with apertures of 10, 12, 14, and 16 inches. The adapter features an M81 thread on the focuser side to thread onto the ESATTO 3" and an M90 thread on the telescope side to connect to the M117 thread of these RC telescopes. With an optical thickness of 43mm, the adapter combined with the ESATTO 3" focuser reaches 101mm total thickness, and you can use standard extensions from your RC telescope for precise focuser positioning. The adapter features an internal brass compression ring to avoid scratching the nosepiece and includes 3 locking screws at 120-degree separation for secure mounting.
| Optical Thickness | 43 mm |
| Locking Screws | 3 |
| Focuser Connection Thread | M81 |
| Weight | 0.25 lb |
| Compatible Telescope Models | GSO/Orion/TPO Ritchey-Chretien 10", 12", 14", 16" |
| Combined Optical Thickness with ESATTO 3" | 101 mm |
| Internal Compression Ring Material | Brass |