Saturday, 2 May 2026

Fitting an iOptron iEAF to an Askar 71F apochromatic astrograph refractor.

 

The iOptron iEAF attaches easily to the Askar 71F APO astrograph telescope with the supplied fitments. We chose to use this auto-focuser to test another make of EAF in AstroDMx Capture. The iEAF has INDI, INDIGO, Alpaca, and ASCOM drivers.



As is becoming more common, the iOptron iEAF has buttons to manually control the focusing, a useful feature for visual observers.


A customer review, whilst praising the focuser, pointed out that the USB C port (which is actually a USB 2.0 device), is a weak point and can become damaged if the cable pulls up or down excessively. Mindful of this, a right-angled USB C (male) to USB A (female) adapter was plugged into the USB C female port on the iEAF and the adapter held rigidly to the iEAF with a bead of Sugru moldable glue. After about 48 hours the Sugru is set rock hard and prevents the connector from moving when a cable is attached.


It is a fact that this may not be necessary if certain types of cable management are used, but we elected to use this precaution anyway.

We are looking forward to testing this setup with AstroDMx Capture.