Hi, I am trying to get my AT set up parameters maximised for my set up. Currently it takes AT about 70-90 secs to solve. I use an Explore Scientific 102 mm Triplet APO, 714mm Focal Length, Canon 650D DSLR which I understand has a FoV of 1.79 deg x 1.2 deg and a resolution of 1.24"/pixel. I set the exposure to 10 secs and currently I have set my Solver settings as follows; Downscainlg 0 Scale minimum 0.6 Scale Maximum 2.685 Scale Units degwidth Scale refinement 0.1 Search radius 15 Custom options --sigma 70 --no-plots -N none -H 2.685 -L 0.6 -r -- objs 100 Could anyone please advise as to whether these are the correct settings and how I can reduce the time it takes AT to solve??