I have just switched from my 10" RCT to a FLT132 refractor (924mm FL). I'm using 8-second exposures through the L filter and getting very good results with perfect V-curves using KAF8300 sensor, without binning. I disable autoguiding during the AF routine. I think my star detection is set to 4. I will double check tonight. I also use more than 7 steps. Your first group were already perfectly focused but if they were out, it would struggle with only a few points on one side too.
↧