Thanks! Yes, it's the Eagle Nebula with the pillars in the middle. At some point I would like to get closer with my SCT. And yes, I used the ES 2 inch field flattener. It makes a clear difference.
I used the ZWO 31mm narrowband filters (SHO). They're 7nm wide. Guiding was pretty good for the most part. I did throw out about 20% of the frames.
Scope: ES ED102
Mounts: ES EXOS2-PMC-8, SkyWatcher Star Adventurer
Cameras: ASI1600MM Pro, Nikon D7500
Lens: Nikon 200-500mm, Tamron 70-200mm G2, Nikon 120mm manual lens
Misc: ZWO ASI120Mini Guide Camera, ZWO 30mm mini guidescope, Stellarmate, Asiair
Software: Kstars, SkySafari, ExploreStars (android), Pixinsight, DeepSkyStacker, Regim, Astrostakkert, LR/PS, RNC-color-stretch
Computer: Macbook Pro, Surface Pro 4, iPhone, Fire 7