Photographing the star filled sky, also known as astrophotography is not easy like you pick up your camera, point it in the direction of what interests you, and depress the shutter button. However, there are many levels of photography, and I’m sure many of you are aware of the basics.
For astrophotography you will be delving a bit deeper into the use of some of the manual controls of your camera like shutter speed, aperture, and ISO control. I also highly recommend shooting in RAW for night photography, as it will allow more control when editing the final image.
What You’ll Need Is :
- Tripod– We’re going to be dealing with exposures in the tens of seconds and I don’t care who you are, you’re going to need something to stabilize your camera.
- A Camera With Manual Controls– Manual control of your ISO and shutter speed are going to be essential for photographing the stars.
- A Wide Aperture Lens– You’ll need a lot of light and f/2.8 seems to be the butter zone for astrophotography. Combine this with an ultra-wide lens and depth of field won’t be a problem.
With these three pieces of gear you’ll be off to a great start, but of course, there’s a lot more out there that you could potentially add down the line, which I’m sure you can discuss in the comments below.
Now, it’s not enough to just get all the gear, you need to find the right places to photograph the night sky as well. Light pollution is a serious problem for astrophotography and if you’re anywhere near a large city you’re going to have to travel at least an hour to get away from the lights.
On top of finding the right location on Earth, you’ll want to have some idea of the location of various stars and constellations for your photography. I use an app called Starwalk for my iPhone to track these down as well as locating the core of the Milky Way, which can be amazing when photographed.
The Basic Set-up
When photographing these tiny pinholes of light you will need as much light to hit your sensor as possible. Therefore it’s important to use combination of high ISO, wide apertures, and long shutter speeds.
One thing to do to try and minimize the light pollution is to find out where it is in a timely manner. To do this I typically will fire off successive shots all around the horizon using an absurdly high ISO (typically the highest my camera will go) simply to limit the time it takes for each shot to expose. These shots won’t be used in the final process, but they are valuable in letting me know which parts of the horizon are off-limits.
As far as exposure time goes, it’s better to keep it as short as possible, otherwise you’ll end up with movement in your stars as the Earth rotates.
Now, don’t get me wrong, this can be an extremely cool style of photography in and of itself, referred to most often as creating star-trails like this shot below.
Processing the Photo
Processing these night sky photographs can be a bit intimidating, as at first they won’t look like much. As I mentioned above, I’d highly recommend shooting in the RAW format if your camera offers it, as it will allow you to do a lot more when it comes to this step.