Omegon Steeltrail 2″ Newtonian dual speed 1:10 Crayford focuser
If imprecise focusing has been holding back your visual observing or astrophotography sessions, it is time to invest in a tool that solves this problem once and for all. The Omegon Steeltrail Crayford 2″ dual speed 1:10 focuser is a precisely engineered focuser designed primarily for Newtonian telescopes. It combines robust mechanics with smooth, fine control - all in a compact and durable stainless steel body.
Precision engineering at its core
At the heart of this focuser are extremely strong stainless steel ball bearings combined with stainless steel guide rails. Together they ensure smooth, backlash-free movement of the drawtube across its full 30 mm of travel. By using premium steel instead of aluminium or plastic, this focuser resists mechanical wear, temperature fluctuations, and moisture - exactly the conditions astronomers encounter during nighttime work. The focuser is finished in matte black, which minimises unwanted light reflections inside the telescope tube.
Key specifications
| Parameter |
Value |
| Weight |
830 g |
| Height |
54.5 mm |
| Optical length |
51.5 mm |
| Drawtube travel |
30 mm |
| Telescope connection thread diameter |
78 mm |
| Accepted eyepiece/camera barrel sizes |
1.25″ and 2″ |
| Load capacity |
5 kg |
| Fine focus reduction ratio |
1:10 |
| Finish |
Matte black |
| Material |
Stainless steel |
Dual speed 1:10 mechanism - precise focus every time
The dual speed mechanism with a 1:10 reduction ratio is the defining feature of this focuser. The coarse knob allows rapid movement to an approximate focus position, while the fine knob with its 1:10 reduction enables micrometric adjustments - every millimetre of knob rotation translates to just one tenth of a millimetre of drawtube movement. This level of precision is absolutely essential for high-magnification visual observing and for astrophotography, where the critical focal plane tolerates only minimal deviations. The improvement over a standard single-speed Crayford focuser is immediately noticeable in the field.
Ready for heavy imaging equipment
The 5 kg load capacity will be especially appreciated by astrophotographers using heavier CCD or CMOS cameras, filter wheels, or field flatteners and correctors at the focuser end. The focuser is equipped with a ring clamp that holds an eyepiece or camera securely in position without any risk of slipping - an absolute necessity for photographic work. A motor drive or rotation mechanism is not included, but the solid, maintenance-free Crayford-type mechanics are fully sufficient and highly reliable for manual operation.
Who is this focuser for?
- Visual observers who need precise, backlash-free focusing at high magnifications
- Astrophotographers working with DSLR, mirrorless, CCD, or CMOS cameras on Newtonian telescopes
- Users who want a durable, all-metal focuser that resists the conditions of nighttime outdoor use
- Anyone looking to significantly upgrade the focuser on their existing Newtonian reflector
About Omegon
Omegon is a brand with a long tradition in astronomical optics and accessories, founded with a clear goal - to offer astronomers products genuinely designed around their needs. The brand places emphasis on build quality, practicality, and accessibility for a wide community of observers, from beginners to experienced astrophotographers. The extensive Omegon accessories range means that when building or upgrading an astronomical setup, you can find everything in one place - from eyepieces and filters to precision focusers like this Steeltrail Crayford.
