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Baader Diamond Steeltrack (BDS) 2" Focuser for Newtonian Telescopes (NT)

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£275.00
SKU 2957230

Availability: Contact Us

  • Baader Diamond Steeltrack® (BDS-NT) for Newtonian telescopes with 40 mm focus travel
  • Minimum height (as supplied – incl. 2" clamp): 63 mm
  • Minimum height (with optional S58 direct-thread adapters): 50 mm
  • Focuser weight (as supplied – incl. 2" Klemme): 1.000 g (35.25 oz)
  • Includes Baader Versabase, for perfect fit onto most tube diameters. Optional flat mounting base also available
Description

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 (#) 2957230
WEIGHT (KG) 1.04
FOCUSER TRAVEL 40 mm
PAYLOAD CAPACITY (KG) 6 kg
INNER DIAMETER / CLEAR APERTURE (MM) 55
SHORTEST OVERALL HEIGHT (STANDARD) 63 mm
SHORTEST OVERALL HEIGHT (W. OPT. ADAPTERS) 50 mm
REDUCTION 1:10
ROTATABLE Yes
FINDER BASE No
MOTORIZED No, but can be upgraded
SPECIAL FEATURES True diamonds form a micro-geared high precision drive system
INCLUDED ACCESSORIES Includes Baader Versabase, for perfect fit onto most tube diameters. Optional flat mounting base also available
OUTER CONNECTION (LENS SIDED) Dovetail ring, 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 Newton
FOCUSER STYLE Crayford
FOCUSER SIZE 2 inch