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The MicroTouch Autofocuser is designed to work with Feathertouch Focusers from
Starlight Instruments. It allows automatic focusing with CCD and DSLR cameras.
Included is FocusMax software to automatically focus the telescope for imaging. Manual
focus is also possible using the hand controller. The hand control features an LCD screen
for displaying a digital readout of focus position as well as information used for
programming the temperature compensation feature.
The MicroTouch Autofocuser is compatible with Feathertouch Crayford focusers,
Feathertouch SCT MicroFocusers, and Feathertouch MicroFocusers for Takahashi and
TeleVue refractors.
Instruments 3.5" focuser.
Included Parts
• Hand Control
• Focus Motor
• Focuser Gear
• Motor Connector Cable
• USB Cable
• 12-Volt Power Cord (AC or DC, user selected)
• 3 Hex-Head Wrenches
• MicroTouch & FocusMax Software
Hand control, receiver, motor, cables
An optional larger focus motor allows use with the Starlight

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Summary of Contents for Starizona MicroTouch Autofocuser

  • Page 1 The MicroTouch Autofocuser is designed to work with Feathertouch Focusers from Starlight Instruments. It allows automatic focusing with CCD and DSLR cameras. Included is FocusMax software to automatically focus the telescope for imaging. Manual focus is also possible using the hand controller. The hand control features an LCD screen for displaying a digital readout of focus position as well as information used for programming the temperature compensation feature.
  • Page 2 Installing the Focus Motor The following directions are illustrated using a Feathertouch SCT MicroFocuser, but the instructions are identical for any Feathertouch focuser. Begin by removing both the brass fine focus and black standard focus knobs from the focuser. Use the included medium size hex-head wrench to remove the knobs. Install the small brass gear onto the focus shaft.
  • Page 3 Connect Hand Control Use the included RJ11 cable to connect the motor to the hand control. Using the MicroTouch Autofocuser Manually You can use the MicroTouch focuser to focus the telescope visually by using the IN and OUT buttons. This is also how you will approximately focus the telescope when using a...
  • Page 4 Temp Comp This activates the Temperature Compensation feature of the MicroTouch Autofocuser. Press SET to turn this feature on. In order for the Temperature Compensation feature to work, it must learn how to compensate for changes based on the optical system being used.
  • Page 5 Wireless This turns the wireless communications on or off. The default for the MicroTouch Autofocuser is OFF. If the autofocuser is upgraded to the wireless version, the mode must be changed to ON. Motor Rev This reverses the direction of the motor. Reset Position The default position of the digital readout is 30000.
  • Page 6 If, for some reason, Windows cannot automatically install the hardware, you can run the hardware installer again and manually select the driver. The driver is located in the Program Files > Starizona > USB2Driver folder and is called SiUSBXp.sys.
  • Page 7: Setup Menu

    MicroTouch Software Launch the MicroTouch software. The Setup menu is displayed. The default connection is USB2. The MicroTouch Autofocuser is backward compatible to USB1.1. If your computer only has USB1.1 ports, select USB from the drop down menu. Press Connect to connect to the MicroTouch Autofocuser.
  • Page 8 Set Speed Delay This sets the time delay before the motor ramps up to full speed. The default is 1.0 second. This means the focus motor will begin moving slowly then accelerate to full speed after 1 second. This allows more precise manual focusing. Changing the value to 0 would eliminate any delay and the motor would turn full speed immediately upon a move command.
  • Page 9: Movement Menu

    Movement Menu The Movement menu is the main window for controlling the MicroTouch Autofocuser in manual mode. The current position of the focuser is displayed. The up and down arrows correspond to the OUT and IN buttons on the hand control, respectively. (IN decreases the count, OUT increases the count.)
  • Page 10: Temperature Compensation

    Temperature Compensation This menu gives you control over the temperature compensation feature of the MicroTouch Autofocuser. It includes the same basic controls as the hand control, as described above, as well as additional features for more advanced control.
  • Page 11 The current temperature is displayed in °C. Turn On Learning works the same as the Learning feature in the hand control, described above. Once calibrated, the temperature coefficient (the number of counts per degree of temperature change) is displayed. This number can be manually changed by typing in a new number and selecting the New Coefficient button.
  • Page 12: Diagnostics Menu

    Diagnostics Menu The Diagnostics window shows the current status of the MicroTouch Autofocuser and its connection to the computer. When properly connected, the Hand Controller, Motor Controller and Temperature Sensor status windows will display OK. The windows for Number of Corrupted Packets and Number of Comm.