TS 2 Inch UNC Gen 2 Newtonian Focuser
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TS 2 Inch UNC Gen 2 Newtonian FocuserTS 2 Inch UNC Gen 2 Newtonian FocuserTS 2 Inch UNC Gen 2 Newtonian FocuserTS 2 Inch UNC Gen 2 Newtonian Focuser

TS 2 Inch UNC Gen 2 Newtonian Focuser

£219.00✓ 2 year warranty

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

Model:  ts_uncn2-g2
Part Number:  UNCN2-G2

TS-Optics 2 Inch UNC Gen. 2 Newtonian Focuser with additional thread - loads up to 5 kg.

This is a Short 2" focuser for Newtonian telescopes, with a base for astrophotography and observation and an intermediate thread for screw adaptations.

The TS UNCN2-G2 focuser is optimised for Newtonian telescopes when heavy accessories need to be precisely focused. It is also optimised for Astrophotography.

The rack and pinion focuser can be fully loaded with accessories weighing up to 5 kg without tilting or reducing the accuracy of the adjustment.

Due to its design, this focuser does not allow the drawtube to slip, making it a good choice for use with a Motor Focuser.

The advantages and product features of the UNCN2-G2 focuser:

  •  Highest rigidity - eight ball bearings hold the drawtube, and adjustment is done via a gear drive
  •  22 mm adjustment range via the gear drive
  •  The focuser holds up to 5 kg with complete accuracy
  •  M54x0.75 intermediate thread for screw adaptations, or if the drawtube needs to be extended, suitable extension tubes are available.
  •  One of the shortest focusers in its class with only 58 mm overall height up to 2" and only 50 mm overall height to the M54x0.75 thread when the drawtube is retracted
  •  Easy attachment to existing tubes, the base is included
  •  The focuser is not clamped by pressure on the drawtube, which can cause tilting. The adjustment shaft clamps it. This keeps the focus position at 100% without the risk of tilting, which is essential for   astrophotography
  •  1:11 dual speed provides accurate manual adjustment, which is especially valuable for fast telescopes.
  •  Motorised Focuser upgrades are available.

Screw connection of correctors to the M54x0.75 thread of the focuser:

If the corrector is screwed to the focuser, tilting is prevented. Therefore, many astrophotographers attach great importance to this. TS has developed a short adapter to M48x0.75, especially for this focuser. The # M54a-M48i  adapter is only 3 mm long. 

The MPCC from Baader and TSGPU from TS-Optics coma corrector have an additional M48 thread for screw adaptations. You can use these threads and have the full working distance of 55 mm available.

However, you can also use other correctors with the short adapter # M54a-M48i. The prerequisite is that the M48 thread on the camera side is at least 5 mm long. Then, there is still enough thread left for the camera connection. Please take into account, however, that the corrector's working distance is reduced by 3 mm.

What is the function of the bottom-mounted Screws?

A: Mounting screws for the focus drive. Have to be tightened carefully.

B: Access bore for the locking screw of the 1:10 part

C: Locking screw for the planetary gear housing

D: Access bore for the left focus wheel locking screw

E: Adjustment screw for rack & pinion spacing

Friction Adjustment
This focuser has a Rack & Pinion system, so the 'friction' cannot be adjusted separately. If necessary, slightly tighten the "lock" thumbscrew. In no case should the adjustment screw "E" be used for this. It is adjusted by the factory. To eliminate axial play, carefully tighten this screw until no play is noticeable. Then, do not tighten further.

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