Peter Kennett replied to the topic 'New Focus Algorithm in Ekos' in the forum. 2 years ago

Thank you, thank you, thank you!!! Several of us have been saying for almost two years about the linear auto focus always choosing the wrong focus point. I always had to go back in and move it back to the pre-calculated (from the first pass) position which was ALWAYS better than the spot EKOS stopped at. I baffled me why it go through the trouble to calculated a perfect focus spit, then choose a spit just inside of it. I image with a C11 w/ the ZWO EAF and the initial calculated point always produced a better focus point.

What I found worked was to let EKOS run through the first pass, and then I would move the focuser outward a ways (to take up the backlash) and then move it inward to the calculated spot. It worked great - but was basically manual.

With the C11 EdgeHD and ZWO EAF it was important that the final focus movement was INWARD. Otherwise I would end up with some mirror tilt.

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