This is 12x5m Ha (7nm), 15x5 Oiii (8.5nm) and 11x5m Sii (8nm) for just over three hours of data captured as a test from downtown Victoria with an asi2600mm, Askar FRA600 at f3.9 from a Wave 150i. I had some small flaring due to a light on a crane, so I cropped the field down quite a bit to compensate.
I calibrated with bias and dark frames and stacked/processed in Pixinsight.