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Guide Port Conversion Kit
Adds Auto-Guider compatibility to EQ-style mounts
Guide Port Conversion Kit for EQ-style mounts
  • For EQ-style mounts
  • Makes the telescope mount's hand controller, suitable for Auto-guiders
  • Suitable for the Shoestring
    Auto-Guiding Kit
  • Includes 3-metre cable
Shoestring Astronomy
Interface Cable
CCD Camera
Guide Port Conversion Kit for EQ-style mounts
Order No. Price (inc_VAT) Shipping Delivery click to purchase
SSGPKITEQ £ 14.95 £ 3.00
Instruction Manual 1.0 (PDF)

This kit contains the parts needed to add an ST4 compatible guide port to an EQ-style dual axis hand controller. The EQ-style telescope mount series are some of the most widely sold mounts in the world.
Various companies such as Celestron and Orion (USA) sell versions of these mounts. They are all produced by Synta. By adding on the motor and hand controller accessories that are available for these mounts, long-exposure manually-guided astrophotography can be performed. However, these hand controllers do not include autoguider ports so that computer driven autoguiding can be utilized. There is no standardized autoguider port that is common to all manufacturers, but the socalled ST4 port is a very common format used on most scopes.

If you own one of these styles mounts, and are comfortable with opening up the handcontroller box and making some simple modifications, then read on! If you are not comfortable doing this, maybe you have a friend that is. Webcam autoguiding is an inexpensive way to eliminate the monotony of manually autoguiding. Read through these instruction entirely prior to beginning the modification. Make sure you understand what must be done, and are completely comfortable with doing it.

Once the modification to the hand controller has been performed, you will need the Shoestring GPINT-PT Auto-Guider Kit or the Shoestring GPUSB Auto-Guider Kit to connect the computer to the telescope mount.
Modified hand controller.
Modified hand controller.
Warranty Warning
Performing this modification will void your warranty. Do not proceed if you are not comfortable with this. Also, all work should be performed by a person who knows how to solder, and at a workstation that is electrostatic-discharge (ESD) safe. Failure to do so may result in permanent damage to your handcontroller. This procedure is not particularly difficult, but should not be performed by someone unfamiliar with electronic assembly.

Additional Tools And Supplies Needed
In addition to this kit you will also need the following:
  • 7/32" nutdriver
  • 7/32" drill bit
  • Drill
  • Tweezers
  • Two flat screwdrivers
  • Small Phillips screwdriver
  • Solder iron
  • Eutectic solder

We are constantly checking the accuracy of the technical data. We are prepared to provide more detailed information on request. Technical data is subject to change without notice.

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