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  2. Camera scanning (negatives), spectral lighting testing, Dynamic range tests
  3. Spectral analysis of different light sources

Spectrum 3

Spectrums of different light bulbs. Through a 1,000 lines/mm linear diffraction grating. R, G, and B levels were adjusted to be equal.
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Philips EcoVantage soft white incandescent bulb (72w = 100w)
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Philips EcoVantage soft white incandescent bulb (72w = 100w)

  • Indoor Sunshine full spectrum CFL
  • Home Depot EcoSmart "True Color"
  • n:vision daylight CFL (no claim for full spectrum)
  • Alzo full spectrum CFL
  • Adorama 85W full spectrum
  • Home Depot EcoSmart soft white CFL (no claim for full spectrum)
  • Philips soft white CFL (no claim for full spectrum)
  • Real tungsten incandescent bulb
  • Philips EcoVantage soft white incandescent bulb (72w = 100w)
  • 12V MR16 Tungsten Halide
  • SoLux 4700K
  • SoLux 3500K PAR38
  • Cree daylight LED 60W (equiv. 9 watts real) 5000K CRI 80
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