I used my 70-200 f4 and an iOptron SkyTracker 3-4 years back or so. My suggestions beside the Orion sword area:
3) California nebula (NGC 1499)
4) North America nebula
5) Sadr area
6) Lagoon/Trifid nebula
8) Rho Ophiuchus area
9) Heart/Soul nebula (higher difficulty but just try it)
10) Witch head nebula, maybe.
11) Flaming Star/Tadpoles. (should be high enough now for a few hours)
12) Seagull Nebula (should be high enough now for a few hours)
13) Rosette Nebula/Christmas Tree area (should be high enough now for a few hours)
You probably have an unmodded camera, like I did, so you'll suffer on Ha about 2 stops, but shoot at slightly stopped down to balance out light/CA/sharpness and shoot a LOT. Your lens is fast so you'll get the Ha data, but you have to boost the 25-75% part of the red channel curve vs. green/blue in post-processing to make the emission nebula to show up well. Be VERY careful focusing, it's quite difficult with a camera lens, especially on a light mount. I'd suggest a Bhatinov mask from Farpoint Astro or somewhere. Touch it slightly with the live view zoomed in on a very bright star, try to get it as perfect as possible. Get the best data you can; 30s-1min subs and shoot a LOT of them. Getting better at processing will be faster than being able to reacquire data...I reprocess stuff all the time as I learn but getting good data is key. Great focus, tight round stars, process over and over again.
Edit: Oh yeah, Astronomik, IDAS sell clip-in filters that might fit your camera for light pollution at least that enhance contrast.
Edit 2: If you don't know already, https://www.blackwat...maging-toolbox/ can help frame out the images if you select your camera/lens combo.
Edited by RFtinkerer, 08 March 2021 - 12:25 PM.