Baader Diamond Steeltrack 2" Focuser for Newtonians
- 2" Focuser Format
- Diamond Steeltrack Drive System
- Designed for Newtonian Telescopes
- Universal Mounting Base
- Includes Adjustment Shims
The Baader Diamond Steeltrack 2" Focuser for Newtonians replaces stock focusers with a zero-slip mechanism designed for the 2-inch accessory format. This upgrade ensures that even heavy 2-inch eyepieces or imaging trains hold critical focus without shifting or flexing.
Unlike conventional Crayford or rack-and-pinion focusers that can slip under load, the Diamond Steeltrack system uses a hardened stainless steel drive shaft that engages with roller bearings. This design provides a direct, positive connection to the drawtube, eliminating the backlash and image shift that can ruin a long exposure or critical visual observation.
The result is a focuser that can carry the weight of a full imaging train—including a camera, filter wheel, and off-axis guider—without losing focus, even when your Newtonian telescope is pointed near the zenith. The fine-focus knob allows for precise adjustments needed to achieve sharp stars on a high-resolution sensor.
The Baader Diamond Steeltrack 2" Focuser is engineered for broad compatibility across different Newtonian optical tubes. It includes a versatile Baader VersaBase, a universal mounting platform designed to fit a range of tube curvatures. This eliminates the need for a telescope-specific adapter in many cases.
For tubes that require additional spacing, the package includes strip shims. These adjustment spacers are placed between the telescope tube and the VersaBase, providing the necessary height to achieve the correct focal plane. This thoughtful design ensures you can upgrade your focuser without being locked into a single instrument.
The key difference is the drive mechanism. A Crayford focuser relies on friction between a steel shaft and a flat on the aluminum drawtube, which can slip under heavy loads. The Baader Diamond Steeltrack uses roller bearings that engage a hardened steel track, creating a positive, gear-like connection that does not slip, providing superior stability for heavy eyepieces and imaging equipment.
Installation is designed to be straightforward for most Newtonian owners. The focuser comes with a universal VersaBase that fits many tube curvatures. For other diameters, included strip shims can be used to adjust the height. You will need to unbolt your existing focuser and attach the Baader Steeltrack in its place, aligning it with your secondary mirror.
Yes, this is its primary advantage. The no-slip drive system is specifically designed to support the weight of a full imaging train (camera, filter wheel, off-axis guider, etc.) without flexing or shifting focus. This is particularly important for Newtonian telescopes where the focuser is often positioned at a steep angle.
The universal base allows you to mount the Baader Diamond Steeltrack 2" Focuser on a wide variety of Newtonian telescopes without needing to purchase a custom-machined adapter. This makes it a more versatile and future-proof upgrade, as you can potentially move it to a different telescope later on.
For planetary viewing, achieving perfect focus is critical to seeing fine details like the cloud bands on Jupiter or the Cassini Division in Saturn's rings. The Diamond Steeltrack's precise fine-focus control and zero-shift mechanism allow you to make minute adjustments without any image wobble or backlash, ensuring you can snap the view into perfect sharpness at high magnification.
Absolutely. When imaging a bright object like the Orion Nebula (M42), you are often taking many long exposures. The Diamond Steeltrack's stability ensures that focus does not drift over the course of the imaging session due to temperature changes or mechanical sag. This results in consistently sharp stars from the first frame to the last.
| Net weight (kg) | 1.01 |
| Included Accessories | Includes Baader Versabase, for perfect fit onto most tube diameters. Optional flat mounting base also available |
| Special Features | True diamonds form a micro-geared high precision drive system |
| Optional Accessories | Baader Steeldrive temperature compensating motor drive system |
| Inner Diameter / Clear Aperture (mm) | 55 |
| Focuser style | Crayford |
| Focuser size | 2 inch |
| Compatible telescopes | Newton |
| Focuser Travel | 40 mm |
| Shortest overall height (standard) | 63 mm |
| Shortest overall height (w. opt. adapters) | 50 mm |
| Motorized | No, but can be upgraded |
| Reduction | 1:10 |
| Payload Capacity (kg) | 6 kg |
| Finder base | No |
| Rotatable | Yes |
| Inner Connection (eyepiece/-camera-sided) | ø 2" (50.8mm), M55, S58 |
| Outer Connection (lens sided) | S88 |
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