I took this shot from my balcony earlier this evening and tone mapped it with Mantiuk ’06 Contrast Equalization (using -e 0.6). The exposure lasted nearly 20 minutes. It’s not as sharp as I’d like, but I don’t think I had the lens focused correctly. (I couldn’t see anything in the viewfinder to focus it at all!)
Sigma 50-500mm lens at 140mm. f/11, 1179 seconds, ISO 100.