
M57 Ring Nebula at f/10
Captured last night, this is M57, the ring nebula - as seen from bortle 8 suburbs.
I used my nexstar 8se at its native focal length 2032mm f/10 with my ASI533MC pro camera, skywatcher eq6-r pro mount, and no filters (straight broadband).
I attempted to use my planetary barlow lense to crank things down to f/20 4064mm, but that was pretty stupid from bortle 8 and didn't work at all, so I switched to f/10 and this was the result. This image is about 5.5 hours of 3-minute exposures, stacked in NINA and processed in PixInsight.