TS 2.5'' Rack and Pinion Focuser M90
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TS 2.5'' Rack and Pinion Focuser M90TS 2.5'' Rack and Pinion Focuser M90TS 2.5'' Rack and Pinion Focuser M90

TS 2.5" Rack and Pinion Focuser M90

£259.00
  (2 Reviews)
✓ 2 year warranty

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1x in stock shipped 1-2 working days
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About this product

Model:  ts_tsfocr25
Part Number:  TSFOCR25

The TS 2.5" Rack and Pinion Focuser is a high-quality 2.5" focuser with a max payload capacity of 6kg.

Telescope side connection - M90x1 female thread:

The TS 2.5" rack and pinion focuser is attached to the telescope via an M90x1 female thread adapter. 360° rotation is also included -  with no tilting. The connection fits directly to the 6" and 8" StellaLyra Ritchey Chretien and Cassegrain telescopes.

Camera side/eyepiece side connection:

The TS 2.5" rack and pinion focuser has an M63x1 connection thread on the camera side. This allows direct screwing of corrector systems like the TS 2.5" full-frame flattener for refractors or StellaLyra Ritchey Chretien telescopes.

In addition, a 2" eyepiece adaptor is included (compression ring with three screws), and a 2" to 1.25" adaptor is also included.

This focuser does not use ballbearing supports, which can tilt. Instead, it uses a  Teflon support, guaranteeing a complete lack of play when used with heavy loading. The draw tube's motion is separated, offering the best possible stability and smooth movement.

FEATURES

  • Telescope Side Connection: M90x1
  • Camera Side Connection: M63x1
  • Eyepiece Adaptors: 2" and 1.25"
  • Focus Travel: 95mm
  • Focuser Drawtube Inner diameter: 62mm with anti-reflection internal thread
  • Focuser Drawtube Outer Diameter 69mm plus 3mm for the rack
  • Dual Speed Reduction: 1:10
  • Maximum Load Capacity: 6kg

 

What's in the box

  • 2.5" Rack and Pinion Focuser
  • M90 Telescope Side Connection Adapter with 360° rotation
  • 2" eyepiece adapter with compression ring
  • 2" to 1.25" eyepiece adapter with 2" filter thread

 

Customer reviews

Average Rating (2 Reviews):  
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Rating (max 5):  
Excellent Upgrade
21 August 2022  | 

I bought this focusser for my Stellalyra RC6 to primarily take OAG-L, EFW and 2600mm pro. Really robust and a huge improvement over the scope’s supplied focusser (which I’m sure if fine with a lighter setup hanging out back of it). As ever excellent delivery and service from FLO.

Rating (max 5):  
Very Good
27 January 2022  | 

I think I may jinx focusers.

My two favourite telescopes are a Meade 6000 80mm and a William Optics FLT132. Both are superb telescopes but the focusers died after only a year or two. I replaced them with a big Moonlite which is fine for the 132 but really too big for the 80. The Meade is a sufficiently rare telescope that few focuser specs mention that they are compatible. This one is and has restored the Meade's balance.

I can't say it is silky smooth but it gives the appearance of being well constructed and vastly better than the focuser supplied with most telescopes. I have no doubt that a Starlight if you could both find one and afford it would be better but this appears to be a fine product.

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