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The most advanced autonomous focus controller.

Seletek TARSIER, for astrophotographers who prefer leaving the computer at home.

Seletek TARSIER controller

Every Seletek family motor, coupling and focusing accesories will work with the Tarsier, and it will also drive stepper motors from almost any manufacturer (Robofocus, Lakeside, FeatherTouch, Moonlite…) and d.c. motor (Orion, Rigel systems…).

For more information, please read the User’s manual

The Tarsier is the most advanced autonomous focus controller.

Borrowing all the experience earned with our succesful line of controllers, the Tarsier is aimed at the astrophotographer who prefers leaving the computer at home.

It will not only move the focus motor, avoiding vibration at the scope, but also: remember focus points and allow to “goto” any of them.

 will move the motor at small or big increments, or continuously—slowly, or fast

  is capable of controlling almost any motor out there, from high accuracy steppers to inexpensive d.c. motors

 can even track the temperature changes and perform focus corrections on the fly—by itself!

 100% configurable, from motor model, backlash, power, speed…, to backlight intensity

Why are the Seletek controllers (Armadillo, Platypus and Limpet) still the best option to automate the focuser? (click here to find out!)

Tarsier Technical specifications

  • 12 V cc operation (standard power jack, positive inside)
  • 8×2 character LCD, with back light in red color
  • DB9 plug for stepper motors (such as our own, time proven 3600 steps/turn motor, or others from Robofocus, Moonlite, Lakeside, Feathertouch…)
  • Mono audio jack for DC motors (such as Orion’s, Rigel systems…)
  • Size: 144*95mm
Seletek TARSIER controller
Tarsier focuser kit