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2" BDS-RT Baader Diamond Steeltrack Focuser

2" BDS-RT Baader Diamond Steeltrack Focuser

by Baader Planetarium
SKU BDS-RT (Baader #2957210)
$419.00 - $419.00
$419.00
$419.00 - $419.00
$419.00

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Description

2" BDS-RT Baader Diamond Steeltrack® Focuser

Baader Planetarium's 2" Refractor Diamond Steeltrack Focuser gives refractors a full 3" (76mm) of velvety smooth focusing travel. Easily adaptable to popular refractors.

  • Overall length fully retracted 80mm (backfocus length).
  • Drawtube is fully internally baffled and blackened to eliminate off-axis stray light.
  • 72mm dovetail receiver permits 360degree rotation of focuser with single-screw locking.
  • Optional adapters available to fit a variety of other refractors.

      All Baader Diamond Steeltrack (BDS) Focusers have the following specifications:

      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 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 motorblock onto Diamond-NT-Steeltracks for newtonian telescopes
      • 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

      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 55mm inner clear diameter, to prevent vignetting, with anti-reflection knife-edge baffles

      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

      Read our full product information about the Baader Diamond Steeltrack® Focuser

      Specifications
      MANUFACTURER Baader Planetarium
      SKU (#) 2957210
      WEIGHT (NETTO) 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. ADAPTERS) 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

       

      Downloads

      Instruction manual for all Baader Diamond Steeltrack (BDS)

      Baader Diamond Steeltrack Advertisement

      The perfect combination: Diamond Steeltrack, BBHS and Morpheus

      BDS-RT Dimensions (technical drawing)