The SVBONY SV181 is a solid, well-engineered 1.25″ rack & pinion focuser designed for Newtonian reflector telescopes. Built from CNC-machined metal, it provides smooth, precise focusing and improved stability compared to many basic stock focusers.
With a generous 65 mm travel range and a rigid metal drawtube, the SV181 is suitable for both visual observing and lightweight imaging setups. Its straightforward design makes it an ideal replacement or upgrade for entry-level and mid-sized Newtonian reflectors.
Key Features
- Precision rack & pinion focusing for smooth, accurate focus adjustments
- CNC-machined metal construction for durability and rigidity
- Low vibration design for steadier views and improved imaging stability
- Simple installation suitable for common Newtonian reflector tubes
- 1.25″ eyepiece compatibility for standard accessories
Specifications
| Model | SV181 |
| Focuser Type | Rack & Pinion |
| Focuser Tube Length | 105 mm |
| Focuser Travel | 65 mm |
| Eyepiece Adapter | 1.25″ |
| Material | Metal (CNC-machined aluminium) |
| Suitable For | 114 mm–150 mm Newtonian reflector telescopes |
This focuser is well suited for users looking to improve focusing accuracy and mechanical stability without moving to a more complex dual-speed system.
