![]() ![]() You can use Auto White balance, but may see colour shifts between frames and some photographers prefer to set white balance manually to tungsten - makes warm lights and the night sky look more blue.ģ. Set the ISO speed between 200-1600, higher speeds makes the star trails brighter but also adds more noise, you may have to do some test photos to determine the optimum exposure for a single frame. Set up your camera on a sturdy tripod in a location where you can see the stars.Ģ. This photo was taken with a 24 mm F1.4 Canon lens wide open at ISO 800, each exposure was about 10 seconds and the total time I photographed the series was about 15 minutes.īASIC STEPS To Make STAR TRAIL PHOTOGRAPHSġ. Star Trails and Aurora over Pontoon Lake, NWT. The length of the star trails depends on the total exposure time of the series of photos. However, if we stack the images and blend them together using a "Lighten blend mode" the parts of the image that are black or dark become transparent and the lighter pixels are added or combined with the previous images creating the appearance of long star trails. If you were to just stack multiple images one on top of the other the resulting image would become very dark. To avoid this problem it is possible to take a series of short exposures (6 sec to several minutes) and then stack them together. With digital cameras using long exposures of 20 minutes to several hours (depending on the camera make and model) often results in over exposed pictures, lots of digital noise or red glow around the edges. With film based cameras it was easy, you set up the camera on a tripod and used the B or Bulb mode setting and exposed the film for several minutes to several hours. Anyone can take these type of photographs of stars provided you can see the stars and you get to a location without too much light pollution. Star trails can create surrealistic looking photographs. Star trails appear as curved arcs of light in the night sky as the stars appear to move around the north star in the northern hemisphere. Star Trail Photography and Time Lapse MoviesĪurora and Star trails over prosperous lake, NWT - each exposure was about 10 seconds and then I combined several hundred images to create this montage of star trails and the Aurora Borealis.
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