i need a quick solution! the film is always black and we can't see any photo

  • Thread starter Thread starter ☆ Miss Cy ☆
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☆ Miss Cy ☆

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taken by the camera that we built? my partners and i decided to build a camera for a physics' project. so we used a box and a film which has been placed in the box to make sure that it cant be exposed to any light. the "camera" was exposed to the light to take photos for different times ( 2min, 5min, 45min etc) so we can compare them and find the best result. unfortunately, when we tried to develop, the film was BLACK and we couldn't see any picture (and its the 2nd time that we try)

Please I Really Need Help bcz my presentation is next week!!!
 
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