Okay.. So last night I went out and did a bit of an experiment. I tried shooting the pleiades up close: With my 420mm Evostar 72ED and a 2x barlow lens, on the Star Adventurer, unguided. This is a stack of 350+ lights, 20s, ISO 3200 (yes in retrospect ISO3200 was pushing it I suppose. As I said, it was an experiment), calibrated with 60 Flats, 50 Darks and 40 Bias frames. Stacked in APP and stretched/edited with my limited abilities in Photoshop.
Here's what I could pull out of it. It's definately not great: It's pretty noisy, the stars in the bottom left corner are elongated.. but to be honest I'm fairly happy with what I got! I didn't think this would be possible, and I think this does indeed prove I got the wobble out of my rig and my PA on point (though maybe 20 seconds is to short to conclude that, even at 840mm)
Edited by NucleusPhoto, 06 March 2021 - 05:23 PM.