Manufacturer: Baader
Product number: BA2957210

EUR 359,00


incl. 19 % VAT (DE)  
The VAT indicated refers to that applicable in Germany. After logging in, the VAT amount is adjusted to the applicable VAT of the stored delivery country. Therefore, the final price may vary accordingly.
excl. 6.95 € shipping costs (DE)  
Please log in to calculate shipping costs to your country.
more details to the shipping costs ...

  • On stock




rating: 5.0 of 5
  • Details..
  • Technical data..
  • In the box..
2" BDS-RT Diamond Steeltrack® Focuser
for Refractors

The completely new construction combines extreme durability and precision with high payload!

This focusers for refractors has, like the one for Newtonians, two auxiliary threads (M60x1 and M55x0,75) for attachment of dedicated field flatteners or focal reducers/correctors.

Additionally, the Baader RT Diamond Steeltrack allows for mounting a finder base.

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 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 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 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 / ½") 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/correctors

Drawtube Travel:80 mm
Payload:6 kg
Fine focusing:1/10
Special feature:Micro-geared drive system made of diamonds
Bearing:Roller-Bearing, 10 mm width, adjustable
Clear aperture:55 mm
Drawtube outer diameter:63 mm
Telescope side connection:dovetail and M68x1 male thread
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
Auxiliary threads:M60x1 and M55x0.75 for attachment of dedicated field flatteners or focal reducers/correctors
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
Focuser
2" Eyepiece clamp



Recommended accessories




Adaptors

BA2957280

Baader Adapter M88x1 to Diamond Steeltrack BDS-RT

Baader Adapter M88x1 to Diamond Steeltrack BDS-RT

  • On stock

EUR 95,00

BA2957281

Baader Adapter M93x1 to Diamond Steeltrack BDS-RT

Baader Adapter M93x1 to Diamond Steeltrack BDS-RT

  • On stock

EUR 118,00

BA2957202

Baader T2 Adapter for 2" Diamond Steeltrack

Baader T2 Adapter for 2" Diamond Steeltrack

  • Item has delivery time

EUR 27,00

BA2957204

Baader M48 Adapter for 2" Diamond Steeltrack

Baader M48 Adapter for 2" Diamond Steeltrack

  • On stock

EUR 29,00

BA2957206

Baader M68 Adapter for 2" Diamond Steeltrack

Baader M68 Adapter for 2" Diamond Steeltrack

  • On stock

EUR 39,00

BA2957282

Baader Adapter for Diamond Steeltrack to refractor telescopes from Skywatcher

Baader Adapter for Diamond Steeltrack to refractor telescopes from Skywatcher

  • unknown delivery time

EUR 43,00

BA2957283

Baader Adapter M90 to Diamond Steeltrack BDS-RT

Baader Adapter M90 to Diamond Steeltrack BDS-RT

  • On stock

EUR 39,00

BA2957284

Baader Adapter M90x1.5 to Diamond Steeltrack BDS-RT

Baader Adapter M90x1.5 to Diamond Steeltrack BDS-RT

  • On stock

EUR 40,00


General Accessories

BA2956258

Baader 2" Clicklock Clamp for Diamond Steeltrack focusers

Baader 2" Clicklock Clamp for Diamond Steeltrack focusers

  • On stock

EUR 85,00

BA2957165

Baader Steeldrive II Motor Focuser with Controll Box

Baader Steeldrive II Motor Focuser with Controll Box

  • On stock

EUR 665,00

AF3-BAST

TS Motor Focus System for Baader Diamond Steeltrack Focusers

TS Motor Focus System for Baader Diamond Steeltrack Focusers

  • On stock

EUR 249,00

EAF-Steeltrack

Wega Adapter Kit for ZWO EAF Motor Focus to Baader Diamond Steeltrack Focusers

Wega Adapter Kit for ZWO EAF Motor Focus to Baader Diamond Steeltrack Focusers

  • On stock

EUR 114,90

Reviews

Written by Alexndr Soldatov
on 2019-10-30

"High-quality and thoughtful product. Significantly better than conventional devices. But it would be better if it were possible to change the configuration of the focuser, when ordering it."

Written by Wolfgang Müller
on 2019-10-05

"gute Qualität"

0 Product Shopping Cart