User Review

Optec TCF-S Temperature Compensating Focuser

xthestreamsby

★★★★★
Works great!
Focuser driver works great!

Note this focuser is an absolute position device, meaning that you can set a number of focus steps for offsets etc and it returns to the same position after each session.

Tested October 2020 with the older external controller model. It will/does work without the inbuilt temperature sensor - the main benefit of having the inbuilt temperature sensor is that the unit can be "trained" to automatically compensate for temperature changes without software intervention, however it assumes the same focus point for all filters and therefor is of limited value unless all filters are absolutely parfocal.