Sunday, February 17, 2013

New Pool Toy

For a long time now I've wanted a "sports camera" to make videos of bike rides and other outdoor activities. The most popular camera for that purpose is the GoPro Hero series. Two days ago I finally bought a Hero 3 Silver Edition.

Of course we had to play with it right away. I charged it during the evening and, as is my geek habit, I read the owner's manual cover to cover. One of the main features of the GoPro line is that it comes with a waterproof case that protects the camera to a depth of 160 feet. So yesterday we took it to pool to experiment with the camera's time-lapse and slow motion capabilities. Click on the picture to see a video I made from our experiments.

I chose a 5 second interval for the time-lapse portions. That turned out to be too long for the activity we were filming so the motion of people in the pool looks almost random. Perhaps I'll try it again with a 1 or 2 second interval.

The slow motion footage came out quite well. This model can shoot at 60 or 120 frames per second (fps). Normal video framerate is 30fps. Video shot at 60fps can be converted to 30ps, resulting in half speed slow motion. 120fps footage converted to 30fps results in 1/4 speed slow motion. I shot some of each.

One pleasant discovery I made is that even though the 120fps footage must be shot at a lower resolution, iMovie (which I use to edit videos) had no problem scaling it and it looks great at HD resolution.

The video we shot comprised a bunch of random length video clips. When the camera is in its waterproof case it doesn't pick up much sound so I decided to put the video to music. Then as I watched with the music I found that I really wanted the cuts to match the beat of the song I'd chosen so I edited the clips to sync to the beat. It's the first time I've tried that. It's not perfect but I'm pretty happy with the outcome.

We'll think of lots of other activities during which to use the camera. It can be mounted on a window, a helmet, bike handlebars, etc. Even the front of a ski! Maybe that will be the next video you see from me.

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