Fireworks Spectra
Taken by John Bell on November 3, 2018 @ Haversham, Milton Keynes,UK
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  Camera Used: Canon Canon EOS 750D
Exposure Time: 1/25
Aperture: f/4.5
ISO: 400
Date Taken: 2018:11:03 21:58:24
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Local fireworks display tonight. Instead of viewing the big picture I held a diffraction grating over the camera lens to produce emission spectra (1st and 2nd order). I must now learn how to id the lines
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