Takahashi Epsilon – Optec Focuser Kit


Takahashi Epsilon – Optec Focuser Kit. Upgrade to a precision digital focuser with all the adapters included.

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Takahashi Epsilon – Optec Focuser Kit

Upgrading the stock Takashi Epsilon focuser to the low profile, yet extremely robust 3-inch focuser for telescope installations where back-focus is at a premium.

The correct adapters or supplied to attach to the Takashi Epsilon as well as the ones for the corrector optics.

Tilt correction is possible at the base for the E-130 and E-160 models (not the E-180).

The proven FocusLynx control system operates the TCF-Leo.

Various version available:

  • Epsilon E-130
  • Epsilon E-160
  • Epsilon E-180

TCF-Leo Specifications

  • Overall Thickness:    1.25″ (31.8mm) to 1.6″ (40.6mm)
  • Focuser Travel:    0.35″ (8.9mm)
  • Focuser Midpoint:    1.425″ (36.2mm)
  • Total Step Travel:    112,000 steps
  • Step Resolution:    0.08 microns
  • Weight:    1lb. 14 oz. (0.85 kg)
  • Payload Capacity:    20-lbs. (9 kg)
  • Telescope-side Mount:    For Takashi Epsilons
  • Control System:    FocusLynx Controller (included if option selected)
FocusLynx Controller Specifications
  • Stepper Motor Control:    bipolar and unipolar stepper motors,
  • PC Connectivity:    USB/Serial, Ethernet, or optional 802.11 WiFi,
  • Hand Control:    Optional 2-button with Digital Read-Out,
  • WiFi Connection:    Optional 802.11b/g compatible,
  • Second Stepper:    Optional plug-in daughter board,
  • Input Power:    12VDC univeral power supply (110 to 230VAC input),
  • Alternative Power:    Field battery voltage (13.8VDC) with optional automotive cigarette lighter plug,
  • Software Drivers:    ASCOM local server, X2 native drivers for TheSky X
FocusLynx Port Connections:
  • Focuser 1:    RJ45 socket for standard Cat-5e/Cat-6 to focuser,
  • Focuser 2:    Optional second stepper board for RJ45 socket,
  • Power:    12VDC input, 2.5 x 5.5mm plug, center pin positive,
  • Network:    Standard RJ45 Ethernet socket,
  • Hand Controller:    RJ22 socket for standard telephone handset cord,
  • Serial:    RJ12 socket for Optec USB/Serial cable.
TCF-Leo Package Contents
  • TCF-Leo Low Profile Focuser,
  • FocusLynx Control Hub
  • Adapters the Takashi Epsilon
  • Adapters for the corrector optics
  • Optec USB/Serial communications cable, 6-ft. length (if hub option selected),
  • CAT-5e/CAT-6 Ethernet cable, 6-ft. length (if hub option selected),
  • 12VDC 1.25A power supply – 110-240VAC input (if hub option selected),
  • UL/CSA compliant wall plug cord (if hub option selected)


Additional information


Epsilon E-130, Epsilon E-160, Epsilon E-180


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