|
I use 7-9 points (think I'm back to 7 now), with reasonably large step sizes. Making the steps too small gave me inconsistent results--it's easier for the line to bounce around a bit that way.
Key thing is making sure the backlash is dialed in. If the top of the curves don't match up, you've got backlash and should adjust it one way or the other until they level up.
I've also found that it gets confused when stars enter or exit the frame during the focus routine. It also frequently confuses nebulae with stars and that can mess it up too. I have a lot more success with it on galaxy shots where the galaxy rarely confuses the star detection algorithm.
|