Stars over Fisher Towers in Utah

Equipment and Camera Setting for Night Photography

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Night photography has become very popular in recent years, as digital cameras have continued to improve.  Anyone can now capture stunning images of the night sky with relatively inexpensive equipment.  It does, however, require a lot of expertise to capture these images, as the rules of photography are often turned on their head.

One of the most important things to know about night photography is what equipment and camera settings to use.  With a proper exposure, you can capture remarkable images with minimal noise and maximum detail.  However, a simple mistake can cause a photograph to be very noisy or completely out of focus.

Night Photography Example - Stars over Fisher Towers in Utah

Stars over Fisher Towers in Utah


When shooting at night, it helps to have a newer digital camera that is rated well for low-light ISO performance.  It’s also preferable to use a lens with a very wide aperture that can let in a lot of light.  You’ll also need a sturdy tripod when shooting at night. I provide detailed information on equipment I recommend for night photography on my website.

Shutter Speed

Determining the proper shutter speed for shots that include the night sky can be tricky.  A one-minute exposure will yield better-quality images than a six-second exposure because you are letting more light into the camera and therefore increasing the signal-to-noise ratio.  However, during the course of a one-minute exposure the stars will move across the sky and create small star trails in your image.  This is not ideal if you are trying to capture stars that appear as round points of light, like you see them with the naked eye.

You need to find a way to get exposures that are as long as possible without producing noticeable star trails.  This is where the rule of 500 comes in.  With this rule, you take 500 divided by the focal length of your lens to determine the shutter speed.  For example, if you are shooting with a 50mm lens, you take 500/50=10.  So 10 seconds would be your shutter speed.  If you are shooting with a 17mm lens, you take 500/17=29.4.  So 30 seconds would be your shutter speed.

If you are not using a full-frame camera, then you will need to first multiply the focal length of your lens by the crop factor before using the rule of 500.  For example, if you are using a 16mm lens on a camera with a 1.5 crop factor, you will multiply 16mm x 1.5 to get 24mm as your effective focal length.  Then take 500/24=20.8.  So 20 seconds would be your shutter speed.

Night Photography Example - Aurora Borealis near Yellowknife, Canada

Aurora Borealis near Yellowknife, Canada


When taking photos at night, you will generally want to shoot with the widest possible aperture on your lens.  The widest aperture is the lowest number aperture, like f2.8 or f1.8.  This is very important at night because you need to let in as much light as possible to help minimize noise.

One exception to using the widest possible aperture for night photography is if you have an extremely fast lens, like f1.4 or f1.2.  Even with the best lenses, the corners of the image can show a lot of softness at these ultra-wide apertures.  The widest aperture I generally shoot with at night is therefore f1.8 or f1.6 for night photography.


Once you’ve determined your shutter speed and aperture, it’s time to set the ISO.  In the majority of cases, you will want to use the highest native ISO on your camera in order to get the best quality images with the least amount of noise.  Native ISOs are represented by a number, such as 3200 or 6400.  You should avoid using extended ISOs.  These ISOs are generally represented by letters such as H1 or H2.

One exception to using the highest ISO is if it causes the highlights to be blown out in the image.  You can check for this by looking at your histogram.  If there is a spike at the very right edge of your histogram, then the highlights are blown out.  Or, if you have the highlight alert enabled on your camera, the blown out highlights will blink on the image on the LCD screen.  An image with overexposed highlights will be of noticeably lower quality than an image that is slightly underexposed from the use of lower ISOs at night.  So you’re better off using lower ISOs if there’s any chance of blowing out the highlights.

Orion over Canyonlands, Utah


The easiest way to get a night photo in focus is to set your camera up during the day and get your focus right before it ever gets dark.  However, if you can’t do this or you need to change your focus during the course of the night, there are many ways to do this.

If you don’t have a close foreground object in your shot, you can simply focus at infinity.  If there is a moon out, you can do this by using autofocus and simply focusing on the moon.  If there is no moon out, you can zoom in on a bright star using Live View on your LCD screen.  Then, manually adjust the focus until the star appears as a small, sharp point of light.

If you have a close foreground object in your shot, you’ll need to focus at twice the distance of the nearest object.  One way to do this is to place a flashlight at that distance at autofocus on the flashlight.

After you take a shot, make sure and zoom in all the way on the image on your LCD screen to ensure that everything in your shot is in focus.  Sometimes, if the foreground object is too close, it will be impossible to get everything in focus in a single shot using a wide aperture.  In this case, you’ll need to use a technique called focus stacking, where you blending multiple shots taken with different focus points.

Clouds above Mayflower Gulch at night.

By using these camera settings, you can quickly start capturing impressive images at night.   However, there are many advanced techniques that can greatly expand the possibilities available to you.  If you’re interested in learning these techniques in detail, I now have a book called “Collier’s Guide to Night Photography


About Author Grant

Grant Collier has been working as a professional photographer since 1996 and has been shooting photos at night since 2003. He is the author of 12 books and has recently released a book called Collier’s Guide to Night Photography in the Great Outdoors. He has also produced a new instructional video called Collier’s Guide to Post-Processing Night Photos.