Celestron RASA 8 and 2006 CGE mount controlled through hand control with ASIAIR. ST4 Autoguiding with ASI120 guide camera. ASI533MC Pro main camera. Image stacked using Deep Sky Stacker and post processed using GIMP. 20 x 120 seconds and Celestron Ha/Hb filter for RASA. More contrast to bring out central part of M16 but shows less overall nebulosity than original.