Ahhh... good to know. Never used an autofocuser, thought it will use for calculation a video stream.

But i switched from a refractor to a newtonian telescope a week ago. I read a lot about focus instability related to newtonian telescopes and that an autofocuser will save a lot of lightframes.

So LiveView is only usefull for planetary imaging (btw, tried this two days ago the first time using my ZWO 120mm Mini Guider attached to my 750/150, it worked, but i didn't know what i was doing. I got Jupiter and 3 of his moons, but way too bright. But sum stacking the ser file in siril worked... next time )

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