Phaethon :  the solar balloon of Vaucanson high school

 

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The camera

 

We decided to buy the Ricoh Caplio R5 camera (notice) because it is alone to allow to take photo at regular intervals.

 

We used a 2 Go SD Card. When we tried the camera, the battery (lithium DB-60) allowed to take 600 photos of 7 Megapixels.

During the first flight, we chose an interval which lasts 35 s between each photo by wishing to have photo during 5 hours : 2:30 of climb and 2:30 of descent..

During the second flight, as we noticed that the photos by night were not interessant, we decided the inteval lasts 20s secondes, that is to say 3 photos per minutes.