Put film in the Polaroid camera, and attach the Polaroid camera to a balloon.<br>
We put some hot-wire under the camera to keep the film and camera warm when inside the camera.<br>
Two Canon Powershots were included, and a GoPro to film it all. We had a seperate GPS tracker, and a flightcomputer with GPS
that reported its position through a Radiotransmission that was heared and decoded by radio operators from the UK, Holland, Belgium, Denmark and Czechia.
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We were chasing the payload in our car from Holland while decoding its radiotransmission. Then the payload started floating on our atmosphere at 35km. We decided to drive back.<br><br>
Later the balloon burst and the payload landed in eastern Germany. We knew where it landed, and after some calls our payload returned safely.
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Exactly how you can make such a thing, including schematics, code, etc, you can find on my project reference,  <a href="http://www.timzaman.com/">www.timzaman.com</a>.