I am new to using the asiair for eaa and wanted to ask about the histrogram sliders. There are 2 showing up and the one on the left looks like it is for adjusting the black point but wondering if the other is for adjusting the mid or white point? Is there a way to have all three adjustments (black, mid, white) in the histrogram?
Also, I was able to get some decent images using 10 second exposures but when I went to live stack, received an error message - something about a stack error - not enough stars found? I am using an evolution alt az mount. I checked this morning and had light frames selected but no binning. Could this be what caused the problem? Thanks in advance for any help.