152mm A+M Refractor(OfficinaStellare-1200mmF/L) using a TeleVue .8XReducer/Flattener for an effect of 950mmFL using a CanonEOSII RebelT7i modified UV-IR @ Hutech and a BreakThrough X4-UV 49mm filter with step-rings ... on an Astro-Physics 1200GTO '2010' Mount at 1xSiderealGuideRate for 6secGuiding exposures using a ZWOASI120MC-S webcam at Bin2 . FifityThree 'one-shotColor' images were taken ... Twenty 45secISO3200 and TwentyOne 45secISO6400 and twelve 45secISO12800 ... and the CR2s were processed in MaximDL Pro V6.20 . I Average stacked each ISO type in their own Folder and then I made them each a 12BIT image at 'screen-stretch' Max-Val to lower high numerical statistics and then I Sum stacked the three ISO FITS image which made a numerical 'screen-stretch' Max-Val value of 12095 instead of the 4095 they started at . Various commands were used and a "Curves-Luminance" in a certain way brought out the 'center' area better and the "FlattenBackground" with a lot of 'points' was used at 8th Order . x A "BatchProcess" "Curves-Luminance" command for after stacking that worked on NGC2174 .x
