Accessory · MSRP $695
Stellarvue SFFX-3 Field Flattener
Key specifications
| Accessory type | Flattener/Reducer |
|---|---|
| Back focus | 55 mm |
All specifications
| Interface | M75×1 focuser thread; camera adapters M42 to 3"-24 on M69 extensions |
|---|---|
| Compatible with | Stellarvue 127 mm to 180 mm refractors; 2.5", 3" and 3.5" Stellarvue, Feather Touch and Moonlite focusers |
About
A full-frame photographic field flattener introduced in 2024 for Stellarvue's 127 to 180 mm refractors. Its own focuser thread is M75×1, and each unit is assembled to order with an adapter for the customer's focuser and another for their camera thread. It is deliberately given a long back focus so a camera rotator can be fitted between flattener and camera.