I'd definitely want something in the 17-22 area first, all the way no questions about it actually. Unless, you live in the countryside and LOVE Nebulae Mostly. Than, for sure the 31 and 41 would be top choices. Great for comets as well.
But for Globulars, Galaxies, scanning, Planets on bad days, Open clusters, PNe locating definitely get a 17-22mm, if I had to choose right now the 20mm 100 is becoming my favorite and most used. Can't beat that 2mm exit pupil for many objects. The field is just immense also. I have a 25mm ES 100 for Wide Open Clusters, and the 20 100 gives it a ride for it's money on the total field size, both apparent and true.
If money was no issue I'd have this set:
7mm Pentax XW, 8mm TV Delos, 9mm ES 120, 9mm TS-Optics 100, 10mm Pentax XW/Delos, 12mm ES 92, 14mm ES 100, 17mm ES 92, 17mm Nikon HW, 20mm APM/TS-Optics 100, 25mm ES 100, 31mm TV Nagler, 41mm TV Panoptic, or 30/40mm Pentax XW.
The 22mm TV Nagler is great also, but would definitely take a 20 100 instead. Yes. I'm an AFOV total nut, but you want it with an SCT. Can't have a maxxed out TFOV? might as well have a pimped out AFOV, lol.
Edited by Procyon, 28 June 2019 - 05:07 PM.