Accessory · MSRP $229
Stellarvue Reducer/Flattener SFFR102-25
Key specifications
| Accessory type | Flattener/Reducer |
|---|---|
| Back focus | 55 mm |
| Factor | 0.8 × |
All specifications
| Interface | M42×0.75 camera thread; 2" (M48) filter thread at the telescope end |
|---|---|
| Compatible with | Stellarvue SV102T, SVR102T and Access 102; 102 mm f/7 refractors; FSV25/FSV25B 2.5" focusers or a standard 2" focuser |
About
A 0.8× focal reducer and field flattener optimised for a 102 mm f/7 refractor, turning it into an f/5.6 at 571 mm. It threads into Stellarvue's 2.5-inch FSV25 and FSV25B focusers and also works on a standard 2-inch focuser on earlier models. The camera end takes a standard 42 mm thread and the opposite end carries a 2-inch filter thread, so a 2-inch filter can be screwed in for imaging.