Baader's excellent Diamond Steeltrack focuser designed for refractors.
Drive system
- True diamonds form a micro-geared high precision drive system never accomplished before
- In comparison to conventional crayford or rack & pinion drives, this micro-geared movement has zero backlash, zero cogging, and zero flexure
- Diamond Steeltrack 2″ focusers lift a payload of 6kg (13 lbs) straight up, without slipping, without excessive bearing preload (bearing preload can be increased further if necessary)
- Bearing system utilises unbreakable Instrument Grade Roller-Bearings instead of simpler Ball Bearings – handles higher loads with greater rigidity and accuracy. No Teflon-pads anywhere
- 1:10 Stainless Steel fine-focus mechanism, ready for attachment of the optional Diamond Steeldrive temperature-compensating motor drive system
- Detachable drive block assembly is reversible for right hand or left hand fine-focus operation and for attaching the Diamond Steeldrive motor block
- Shortest possible mechanical design achieves optimum balance between focuser height (backfocus) and rigidity requirements
- Zero shift locking knob to precisely stop any movement without affecting optical axis adjustment
Clamping system
- S58 Dovetail ring-clamp built into focusing tube for accepting optional T-2 / M48 / M68 and other S58 direct-thread adapters to enable direct thread connection of accessories and cameras without 2″ clamp
- 2″ eyepiece clamp with hardened bronze clamp ring (length of clamp: 12.5mm / ½”) included as standard
- Optionally available 2″ Baader Clicklock-clamp w. integrated S58 dovetail (added length: 16mm / 5/8″)
- Two auxiliary threads (M60x1 and M55x0,75) cut into the RT & NT focusing-tube for attachment of dedicated field flatteners or focal reducers/correctors
Focusing Drawtube:
- Each bearing individually adjustable for precise alignment of mechanical vs. optical axis
- Ultra-hard subzero coated bearing races – precision milled and much harder than anodising or stainless steel
- Oversized 55mm inner clear diameter, to prevent vignetting, with anti-reflection knife-edge baffles
Specifications
| MANUFACTURER | Baader Planetarium |
|---|---|
| SKU (#) | 2957210 |
| WEIGHT (KG) | 1.04 |
| FOCUSER TRAVEL | 80 mm |
| PAYLOAD CAPACITY (KG) | 6 kg |
| INNER DIAMETER / CLEAR APERTURE (MM) | 55 |
| SHORTEST OVERALL HEIGHT (STANDARD) | 78 mm |
| SHORTEST OVERALL HEIGHT (W. OPT. ADAPTORS) | 65 mm |
| REDUCTION | 1:10 |
| ROTATABLE | Yes |
| FINDER BASE | Yes |
| MOTORIZED | No, but can be upgraded |
| SPECIAL FEATURES | True diamonds form a micro-geared high precision drive system |
| INCLUDED ACCESSORIES | Adapters available or under development to fit a wide variety of refractor telescopes |
| INNER CONNECTION (LENS SIDED) | Thread, M60 |
| OUTER CONNECTION (LENS SIDED) | Thread, Dovetail ring, M68 x 1, S88 |
| INNER CONNECTION (EYEPIECE/-CAMERA-SIDED) | Thread, Clamp, Dovetail ring clamp, M55, S58, 2″ (50,8mm) |
| OPTIONAL ACCESSORIES | Baader Steeldrive temperature compensating motor drive system |
| COMPATIBLE TELESCOPES | Refractors |
| FOCUSER STYLE | Crayford |
| FOCUSER SIZE | 2 inch |