RAW16 is the best option, it's 16bit depth, most precise format.
RAW8 is only 8bit depth, but the camera is 12bit, so the data will limit the performance of camera.
Y8 is color mode, not a good option too.
anti-dew only need to open when the eviroment have dew problem.
bin1 is good, it's full resolution, no binning.
bin2 4 pixels combine to 1 pixel.
bin3 9 pixels combine to 1 pixel.