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How-to's

Improve your technique: How to expose for pinpoint stars

Mike Hagen (Mike_Hagen)


Keywords: landscape, night_photography, exposure, guides, tips_and_tricks, shooting_conditions

There is a sweet spot in time every day where magic happens between the sky and the landscape. It is at this point where a photographer can make an exposure that shows pinpoint stars in the sky as well as details in the landscape.

Trying to capture detail in both the landscape and the stars can be difficult, but from about one hour before sunrise to approximately 30 minutes before sunrise there is a sweet spot that allows you to capture enough information in both areas to produce a stunning final image. The process involves great exposure control while you are in the field and a fairly good knowledge of post-processing techniques back at your computer. Using a camera that allows you to shoot RAW files will greatly help, since you’ll need to pull out shadow detail using software once you get back to your office.

Here are the basic steps in a checklist format. Take a copy of this into the field for you to use on your next star photography adventure. I’ll go through each of these steps in more detail below.


1. Start shooting one hour before sunrise.
2. Use a sturdy tripod.
3. Compose an interesting foreground.
4. Focus at infinity.
5. Use manual exposure.
6. Set shutter speed = 500/focal length.
7. Set aperture f/1.4 or f/2.8
8. Set ISO = 1600, 3200 or higher.
9. Check your exposure. Adjust ISO if you need more or less light.

If you are photographing in the morning, then be sure to be in position for your photographs at least one hour before sunrise. If photographing after sunset, then you’ll start shooting just after civil twilight. Photographing when it is darker will yield an inky-black landscape where you’ll only be able to see silhouettes. Photographing when it is lighter means that you won’t see the stars because the sky is too bright.

As you’ll see in the exposure discussion below, your shutter speeds will likely be 10 seconds long or more. The only way to ensure sharp images is by using a tripod. Use a sturdy tripod. I really like the Gitzo carbon fiber tripods for their sturdiness, strength and lightweight design. The ultimate set up is the MAGICA integrated system, offered at the PhotoProShop, combining Gitzo carbon fiber tripods and Markins accessories.

The goal of including the landscape in your star photographs is to show the interplay between the heavens and earth. Therefore, put a good amount of effort into finding a suitable foreground element. Try to think like a traditional landscape photographer who is composing for foreground, middle ground and the background.

Most landscape photographers use a small aperture like f/16 to maximize depth of field. After setting the small aperture, they focus at the hyperfocal distance or about 1/3 of the way into the scene. In our scenario of shooting stars, however there are two issues conspiring against the traditional hyperfocal focusing method. First, you’ll be shooting at a big aperture like f/1.8 or f/2.8. Second, you need to make sure the stars are crisp. Since f/2.8 won’t allow for much depth of field, your best option is to focus on the stars and not worry so much about the foreground.


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6 comments

Michael A. Folger (MikeD750) on December 14, 2016

Excellent tips. Short and to the point.

Ernesto Santos (esantos) on June 30, 2015

Nikonians Resources Writer. Recognized for his outstanding reviews on printers and printing articles. Awarded for his high level of expertise in various areas, including Landscape Photography Awarded for his extraordinary accomplishments in Landscape Photography. His work has been exhibited at the Smithsonian. Winner of the Best of Nikonians Images 2018 Annual Photo Contest

Mike - Excellent tips. I've used these techniques with very good success, and as you say the key is to use ISO to adjust exposure. This method also works when shooting the milky way.

William Chadwick (wchad72) on October 5, 2014

Sorry didn't read far enough ahead moderator please delete my comments Thanks

William Chadwick (wchad72) on October 5, 2014

Regarding rule 6 (shutter speed = 500/focal length) is this the true focal length of the lens or the focal lenght corrected for crop factor on a camera with a smaller sensor? Thanks

Joe Zamudio (cocavaak) on September 11, 2014

nice article. you don't see a lot of shots like this - or at least I don't. I "accidentally" made a couple she I was shooting the milky way this summer. 17mm, f/2.8, 25 sec, ISO 2000. I shot about 1.5 hours before sunrise.

User on September 11, 2014

Great info. Thanks alot, I'll try it.

G