I tried to image the elephant trunk with my C8 before. It did not turn out how i wanted. I do not have a hyperstar narrowband filter, so it was hard to process. This image was taken on the southside of okc. Subs were 180 seconds and a combined total of 21 hours of data. Stacked and processed in pixinsight.
Equipment:
AM5
sqa55
2600MC PRO
Optolong L-Ultimate filter