Canon RebelT7i 'TPO 80A' thru TeleVue 2XPwrMte thru a 152mm A+M Refractor(OfficinaStellare) 187secISO6400 for four CR2.s AstrometricAverage in MaximDL Pro V6.16 ... then the FITS put into "ImagesPLus" to work on it . 'Multi Point Flatten Background' with eight points around the outer image edge and the ~Balance All Points To Target Lavel~ radio button and then from drop list I used 1024 instead of 5120 .x
