CanonEOSII 6Dstock with Baader 7nm Ha 2in. filter thru APM Flattener for 1155mmFL thru a 152mm A+M Refractor(OfficinaStellare) as two 15minISO6400 TIFFs Average stacked in "ImagesPLus" and then the "Arc-Sin Stretch" and then the "FrequencyFilter" to remove the 'Sine Waves' like the tutorial 'Frequency Domain Concepts' explains to do .. but with the slight variations ; then some "Multi-Resolution Smooth/Sharpen" to 'sharpen' the main nebula and then 'Gaussian Blur' for fainter outer areas .x
