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PlaneWave Electronic Focus Accessory (EFA)

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The PlaneWave Electronic Focus Accessory (EFA) control box performs the following functions:

  • Automates focusing on the optional Hedrick Focuser, or IRF90 rotating focuser.
  • Monitors temperature (primary-mirror and OTA back-plate).
  • Controls the fans built-in to CDK telescopes.

It can be mounted to the back plate of any PlaneWave telescope OTA (12.5 through 24 inches).  The EFA Kit plugs into the temperature sensors and fan control systems that are built into each telescope. A Hand Control is provided to control an optional Focuser or Rotator when standing at the eyepiece.  The EFA kit comes with PlaneWave Interface (PWI3), a software package that controls all EFA functions from a PC.  Cables and adapters are provided to attach the EFA kit to a PC. The EFA kit is ASCOM compatible.

There are two versions available - ensure you have the proper EFA kit selected for your telescope below.

  • #1329012 is for CDK12.5 OTAs.
  • #1329024 is for CDK14, CDK17, CDK20, and CDK24 OTAs.

Specifications: PlaneWave Electronic Focus Accessory (EFA)

What's in the Box

What's in the Box: PlaneWave Electronic Focus Accessory (EFA)

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