M31, Canon 6a, Synta ED80 , 2hrs

Cheap and cheerful: the simplest Synta ED80 + corrector = 510 mm at F/6. I mounted the camera, started the auto-capture from the camera's menu, and walked away.

I'm not sure if guiding was active (I won't lie here: it might have been).

Since there's no dithering and no camera control, walking noise is present. Cosmic Clarity won't install or run at all (there's a new tool there to remove walking noise), so let it remain processed with classic tools.