I was wondering, why do some pictures of deep space objects have lots of stars in them, but some of them don't? Is this done in post-process or are there some hardware things involved (like filters, integration time, lens type, etc.)
https://www.astrobin.com/395925/ (lots of stars)
https://www.astrobin.com/340095/ (fewer stars)
PS: I hope I posted this in the correct category
Edited by feygan, 18 March 2019 - 06:21 PM.