4 ms·

Any way to test my light's spectrum? e.g. a cheap home spectrometer

• tmnvdb 2y ago
  Take a photo
  • maayank 2y ago
    Implies no white balance shenanigans
    • NikkiA 2y ago
      A sheet of paper will generally manage ok for white balance calibration. A 3 tone grey card would be better, but a single, simple white will suffice
• neop1x 2y ago
  Use a CD disk - really - it disperses light similarly to a dispersive prism. You can then see and estimate the amount of red, blue and green in a light. It works very well if you just want to check blue light sources at night. And you can even make a DIY spectrometer with it! https://youtu.be/p3MzQ1OF3lk https://youtu.be/p3MzQ1OF3lk