How-To: Make a $20 spectrograph (from MAKE Volume 24)

Image (2) in_use_retake_4-thumb-600×400-58873.jpg for post 82231

By , 11/17/2010 @ 2:53 pm= | Full size is 600 × 400 pixels

  • Date Taken: 27-Aug-2010 11:55:20
  • Camera: Canon EOS DIGITAL REBEL XTi
  • Focal Length: 55mm
  • Aperture: f/5.6
  • ISO: 100