1. https://scopetrader.com/focusers
  2. https://scopetrader.com/a-new-hercules-rotating-focuser-lands-from-optec/
5/2/2024 3:32:59 PM
A new Hercules rotating focuser lands from Optec
Hercules,Focusing Rotator,Optec,Takashi,Epsilon,Rouz Astro
A new Hercules rotating focuser lands from Optec


A new Hercules rotating focuser lands from Optec

Thursday, May 2, 2024

Richard Harris Richard Harris

The Optec Hercules Focusing Rotator combines camera field rotation with precise telescope focus in a sleek package. Offering a full 3-inch aperture, 0.35" travel, and various configurations including Takahashi Epsilon kits, it maintains a low profile with advanced ASCOM and Alpaca driver capabilities for sophisticated imaging needs.

Optec has introduced the Hercules Rotating Focuser, a new device that merges camera field rotation with telescope focusing capabilities. More compact than its predecessor, the robust Gemini Focusing Rotator, the Hercules offers a full 3-inch clear aperture and 0.35 inches.

Optec Hercules Focusing Rotator specs

  • Thickness: 1.81″ to 2.16″ (46.0 to 54.9mm)
  • Clear Aperture: 76.2mm
  • Height: 8.17″ (208mm)
  • Width: 7.48″ (190mm)
  • Thickness: 1.81″ to 2.16″ (46.0 to 54.9mm)
  • at midpoint: 1.99″ (50.5mm)
  • Weight: 3-lb. 8 oz. (1.6 kg)
  • Telescope side: OPTEC-3600 receiver
  • Camera side: OPTEC-3000 3-inch receiver
  • Focuser Total Travel: 0.350″ (8.89mm)
  • Focuser Total Steps: 112,000 steps
  • Focuser Resolution: 0.079 micron/step
  • Rotator Total Steps: 168,000 steps
  • Rotator Resolution: 7.7 arc seconds / step
  • Rotator Rotation Speed: variable, ~ 3 degrees/second
  • Circuit board: Internal
  • Communications: USB-C and Ethernet
  • Additional: Temperature Probe 3.5mm socket
  • 2.5 x 5.5mm power socket
  • Power draw: 1.25A max, 0.6A while moving, 0.4A holding
  • Input voltage: 12VDC
  • Input connector: 2.5×5.5mm barrel plug, center pin positive



Software specifications

Software specifications

  • Compatibility: ASCOM and Alpaca
  • Capabilities: Focus, Guide star acquisition, field composition, Alt-Az De-rotation
  • De-Rotation: Compatible with Planewave L-mounts, TheSky X, Maxim D/L, N.I.N.A.
  • Any fully configured mount with ASCOM driver.


Whats included in the package

What's included in the package

  • 3.5mm phono style temperature probe
  • 12-volt DC switching power supply w/ wall cord
  • Cat-6 Ethernet cable, 7-ft. length
  • USB-C cable, 6-ft. length
  • 5/64″ T-handle hex driver
Available versions of the low profile combination focuser and rotator

Available versions of the low profile combination focuser and rotator

  • Standard
  • Takahashi Epsilon E130 Kit
  • Takahashi Epsilon E160 Kit
  • Takahashi Epsilon E180 Kit


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