ThirdLynx DirectSync ESX25 (19982)
ThirdLynx DirectSync ESX25 (19982)
ThirdLynx DirectSync ESX25 (19982)
ThirdLynx DirectSync ESX25 (19982)


ThirdLynx DirectSync ESX25 (19982)

Regular price
$ 525.00
Sale price
$ 525.00
Unit price

This item is out of stock but you can place an order now and we’ll ship when it becomes available.


DirectSync ESX25 focus motor with ThirdLynx integrated controller for Explore Scientific 2.5-inch Hex focuser.

ESX25 is designed exclusively for the Explore Scientific 2.5-inch hex focuser and is similar to our original DirectSync ES25 motor with the same Best-In-Class clutch mechanism.  The new DirectSync ESX25 includes an all-new integrated control circuit built into the focus motor end cap.

No external controller is required.

USB connectivity and fully compatible with all existing FocusLynx software.


  • Motor Housing Width: 1.9" (48mm)
  • Overall Length: 3.55" (90mm)
  • Weight: 6.0 oz (165 g)
  • Step Resolution: 1.1 micron per step
  • Stepper Motor: Bi-polar NPM 15-ohm with 1:25 gearhead
  • Controller:  Integrated ThirdLynx
  • Connectivity:  USB 2.0 A-B cable (included)
  • Temperature Sensor: Analog Devices ADT7302 embedded
  • Input Power: 12-volts DC, 2.5 x 5.5mm plug
  • Current Draw: Maximum draw approx. 350mA


  • Explore Scientific telescopes with 2.5-inch Hex focuser.


  • Explore Scientific ED80 FCD100 Triplet Refractor,
  • Explore Scientific ED102 FCD100 Triplet Refractor,
  • Explore Scientific ED127 FCD100 f/7.5 Triplet APO,
  • Explore Scientific FirstLight 102mm Doublet,
  • Explore Scientific FirstLight 127mm Doublet,
  • Explore Scientific FirstLight 152mm Doublet,
  • Explore Scientific FirstLight 203mm Newtonian,
  • Explore Scientific FirstLight 152mm Mak-Cassegrain.
ThirdLynx controllers are fully compatible with FocusLynx dual-focus control hubs making the FTX40 compatible with all ASCOM, X2, and INDI software.

 Package Contents

  • ThirdLynx Motor
  • 3’ USB Cable
  • 15’ USB Cable
  • Allen Wrench
  • Power Supply with cord

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