Image of the Month: July 2011 Fireworks Time Lapse

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July’s Image of the Month is of yesterday’s 4th of July firework show in Loveland, Colorado as seen from a hill on the southeast side of the city. Instead of one image, this selection actually includes more than 1,000 photographs combined to form a time lapse video. I used my Nikon D300 camera with 70-300mm lens mounted on a tripod and a remote release to control when the shutter would be open. I opened the shutter to capture the firework bursts and closed it during the dark lulls between explosions. During the bursts I kept the shutter moving at a continuous, fast frame rate (the speed was roughly 8 frames a second since I have a battery grip that provides a little extra power).
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After the show I resized each of the photos to make them smaller (to 1080 pixels wide instead of the 4288 pixels my camera captures on the JPG Large Fine settings) using an Adobe Photoshop action and a batch automation. I needed to do this since my computer doesn’t have a lot of memory and it is impossible for me to work with the larger sizes in any video editing software. I imported the photos into Windows Movie Maker (yes the program that came free with Microsoft Windows XP) and created a video that ran at 30 frames per second. The resulting video lasts about 1/10 of the time it took to watch the actual firework show (around 2 minutes vs. 20 minutes) and you get to see the most exciting parts!

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