Baader SteelTrack Diamond SC for SCT Telescopes
Baader SteelTrack Diamond SC for SCT TelescopesBaader SteelTrack Diamond SC for SCT TelescopesBaader SteelTrack Diamond SC for SCT Telescopes

Baader SteelTrack Diamond SC for SCT Telescopes

  (5 Reviews)
✓ 2 year warranty


1x in stock shipped 1-2 working days

About this product

Model:  baad_st-sc-diamond_2957220
Part Number:  2957220

Features Baader's unique 'Diamond form' micro-geared drive system for zero backlash, zero cogging and zero flexure. Which is quite an achievement! 

Suitable for Celestron C14/C11/C9.25/C8/C6/C5.  Also suitable for Meade SCT/ACF telescopes with standard 2" SCT thread. 

Diamond Form 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 Steeldrive temperature compensating motor drive system
  • Detachable drive block assembly is reversible for right hand or left hand fie-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 anodising 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


Customer reviews

Average Rating (5 Reviews):  
Write a Review and share your opinions!

Rating (max 5):  
Great focuser
10 July 2023  | 

Very sturdy and a substantial focuser for my C11. Has a very smooth mechanism. Would highly recommend it and easy to fit the SCT visual back.

Rating (max 5):  
Still no click lock
25 June 2022  | 

So Baader still supplying these without a clicklock. You can buy and fit one yourself but now we are getting towards Starlight prices....well if there were any!


A lot of users of these remove the eyepiece holder to attach cameras / reducers directly so supplying a ClickLock would just increase the cost for people who don't want that functionality.

Rating (max 5):  
Steeltrack on Skymax 180
27 February 2021  | 

Simply removed the 2" visual back and banged it straight on. Loosened a couple of screws allowing the steeltrack to be rotated so that the primary skymax focuser didnt conflict and all good to go. First real chance to have a play and what a difference to fine focusing. Definitely sold on Baader stuff. Superb.

Rating (max 5):  
Baader SteelTrack Diamond SC for SCT Telescopes
12 June 2019  | 

I got this focuser to use it with my Skymax180 pro telescope and it works nicely, the focuser feels solid and well made, it is easy to fit and handle my heavy eyepieces no problem. Highly recommended.

Rating (max 5):  
Very nice quality
12 July 2018  | 

Purchased on of these for my Skywatcher Mak150 Pro as the stock focuser is very hit and miss. Although I had previously used a SW crayford style I wasn't that happy with it. This Baader one is very nice quality and super smooth to use. The first one I received from FLO had a small chip and the fine adjustment knob was loose in the box and what I wasn't aware of at the time was it felt quite rough compared to this replacement one, FLO were excellent is sending out a replacement unit. 5 stars for FLO and 4.5 stars fro Baader due to problems with the first unit.


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