A Little help on night shot (photographing stars) - General Help and Assistance on using CHDK stable releases - CHDK Forum supplierdeeply

A Little help on night shot (photographing stars)

  • 1 Replies
A Little help on night shot (photographing stars)
« on: 20 / May / 2009, 02:13:09 »
Ok, let me start out by saying i'm a photo idiot (hehe) but i tried to do a time lapse of the night sky, but all of my pictures came out like this


How can I clean that up, because that is not what I was going for at all...

I have a canon sx 110 is, and it was in manual mode, with iso up to 1600, and everything else (exposure, etc) turned all the way up...

Thanx, I really want to get a cool video going, and put some music behind it, just seems like a fun project...


Offline nonno

  • *
  • 15
Re: A Little help on night shot (photographing stars)
« Reply #1 on: 20 / May / 2009, 04:49:55 »
hi, first of all keep ISO as low as possible for your purpose, high ISO means a lot of noise (and a lot of in camera noise reduction that lowers image details). In my little experience you just should lock focus on infinity and set manually the time value that looks nicer to you, with aperture stuck at maximum (to reduce time value) or 1 or 2 steps from it to reduce lens problems at borders (i think it's called "coma"). Also white balance can be set accordingly with your taste. Another variable is dark frame subtraction, you can do it by hand on a computer with only a few dark frames taken by hand or let the camera do it after every shoot (best results but you double the minimum delay between shots). Also use a very stable tripod with a remote shutter or set the auto-shutter time to delay your on camera shutter pression by a few seconds to reduce vibrations. Only when you've found your right set up start the time lapse.
However you can find a lot of info on night shooting on the net, much more than here.


Related Topics