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Baaader Diamond Steeltrack® (BDS) focusers
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 6 kg (13 lbs) straight up, without slipping, without excessive bearing preload (bearing preload can be increased further if necessary)
- Bearing system utilizes 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 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 Steeldrive motor block onto Diamond-NT-Steeltracks for Newtonian telescopes
- The shortest possible mechanical design achieves the optimum balance between focuser height (backfocus) and rigidity requirements
- Zero shift locking knob to precisely stop any movement without affecting optical axis adjustment
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 anodizing or stainless steel
- Oversized 55 mm clear inner diameter, to prevent vignetting, with anti-reflection knife-edge baffles
Clamping System
- S58 dovetail ring-clamp built into focusing tube for accepting optional T2 / 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: 12.5 mm / ?”) included as standard
- Optionally available 2″ Baader Clicklock-clamp w. integrated S58 dovetail (added length: 16 mm / 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/correctorsA smoothly running Crayford focuser is a good addition for Schmidt-Cassegrains.
Telescope adaptation:
- Refractor – BDS (RT)
- Newton – BDS (NT)
- SC / HD-BDS (SC / H): as Celestron and Meade S/C telescopes
Technical Specifications:
- All BDS focusers could be automatized with the Seletek controllers: Armadillo, Platypus, Limpet and Tarsier.
- Steeltrack Diamond for refractors – BDS (RT):
- Drawtube Travel: 80mm.
- Payload: 6kg.
- Fine focusing: 1/10
- Special feature: Micro-geared drive system made of diamonds
- Bearing: Roller-Bearing, 10 mm width, adjustable
- Clear aperture: 55 mm
- Telescope side connection: supplied adapters for C5/C6/C8/C9.25/C11/C14
- Focus side clamping: S58 dovetail ring-clamp for accepting of S58 direct-thread adapters
- Focus side eyepiece clamp (icluded): 2″ eyepiece clamp with hardened bronze clamp ring (length of clamp)
- Minimal total height (as delivered incl. 2″ clamp): 78 mm
- Minimal total height (with optional S58 direct-thread adapters): 65 mm
- Total weight (incl. 2″ clamp): 1160 g
- adaptation to the Seletek Armadillo and the Seletek Platypus available for automated focusing, and to the Seletek Tarsier for motorized focusing.*
- Steeltrack Diamond for Newton telescopes – BDS (NT):
- Drawtube Travel: 40mm.
- Payload: 6kg.
- Fine focusing: 1/10
- Special feature: Micro-geared drive system made of diamonds
- Bearing: Roller-Bearing, 10 mm width, adjustable
- Clear aperture: 55 mm
- Telescope side connection: supplied adapters for C5/C6/C8/C9.25/C11/C14
- Focus side clamping: S58 dovetail ring-clamp for accepting of S58 direct-thread adapters
- Focus side eyepiece clamp (icluded): 2″ eyepiece clamp with hardened bronze clamp ring (length of clamp)
- Minimal total height (as delivered incl. 2″ clamp): 63 mm
- Minimal total height (with optional S58 direct-thread adapters): 50 mm
- Total weight (incl. 2″ clamp): 1000 g
- adaptation to the Seletek Armadillo and the Seletek Platypus available for automated focusing, and to the Seletek Tarsier for motorized focusing.*
- Steeltrack Diamond for SCT/EHD focuser (SC / H)
- Drawtube Travel: 30mm.
- Payload: 6kg.
- Fine focusing: 1/10
- Special feature: Micro-geared drive system made of diamonds
- Bearing: Roller-Bearing, 10 mm width, adjustable
- Clear aperture: 55 mm
- Telescope side connection: supplied adapters for C5/C6/C8/C9.25/C11/C14
- Focus side clamping: S58 dovetail ring-clamp for accepting of S58 direct-thread adapters
- Focus side eyepiece clamp (icluded): 2″ eyepiece clamp with hardened bronze clamp ring (length of clamp)
- Minimal total height (as delivered incl. 2″ clamp): 93 mm
- Minimal total height (with optional S58 direct-thread adapters): 80 mm
- Total weight (incl. 2″ clamp): 1040 g
- adaptation to the Seletek Armadillo and the Seletek Platypus available for automated focusing, and to the Seletek Tarsier for motorized focusing.*
Baader SCT/EHD Diamond Steeltrack Focuser with motor and plate for SELETEK Armadillo, Seletek Platypus and Seletek TarseroDocumentación:
Baader SCT/EHD Diamond Steeltrack Focuser with motor and plate for SELETEK Armadillo, Seletek Platypus and Seletek Tarsero