Star trails over Patricia Lake and Pyramid Mountain in Jasper National Park. Moonlight provides the illumination and a faint aurora is at lower right in the northeast. The Big Dipper is the main pattern right of centre. This is a stack of about 100 frames to create the star trails using Advanced Stacker Plus actions in Photoshop with the Long Comet streaks effect. Two additional single frames are layered in, one for the ground from one of the frames and another for the sky to create the point-like stars after a gap at the ends of the trails. This frame came from a minute or so after the last trail frame was taken. Each exposure was 20 seconds at ISO 1600 with the Canon 60Da and Rokinon 14mm lens at f/2.8. The frames had to be cropped to cut out car lights from a road off frame at right.
A star trail sequence shot at Patricia Lake in Jasper National Park, Alberta, showing two cameras at work shooting a time-lapse dolly motion control sequence (at left) and a static camera star trail sequence (at right). This is a stack of 100 frames out of 400 shot by the third camera, with one frame shot a couple of minutes after the sequence and layered in to add the blurry but point-like stars at the ends of the trails, including the Big Dipper. Each frame was 32 seconds at f/4.5 (stopped down too much by accident) with the 24mm lens at Canon 6D at ISO 800 in bright moonlight from the waxing gibbous Moon.
