Recent images from my ZWO S30 plus. If you compare them to counterparts in the “Astro Gallery” post the difference beween a 90mm telescope on a good equatorial mount, and the 30mm S90 portable is quite noticeable. These all have a total exposure time of over an hour, with some processing with gimp.
On reddit, some hobbyists report total exposure times of like 24 hours, accumulated over several nights and combined in post-processing. They get incredible results. But time is precious.
