Cross-Polarised

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    Cross-Polarisation is something I learnt in my Physics lessons.
    It basically involves filtering the planes of direction at which the light travel.
    The shot was taken using my computer screen with a white fill on. I then placed the set square up and then my camera with a polariser on.
    As you twist the filter, the white screen slowly goes back, as the white light from the monitor is already polarised the light is only in one plane, vertical or horizontal. As you twist the filter, you gradually block off the vertical or horizontal plane so there is no light hitting the sensor. However, the plastic, distorts the light flow creating these great colours!
    Its a technique that used to be used by engineers to test the structural integrity of buildings such as bridges, as you twist the plastic, the light behaves differently as it passes through as so changes the colour.

    Kinda what i was doing
    www.youtube.com/watch?v=bMxwyrYeB40&feature=fvw

    Hit L

    Tim Barker - in North Devon, TomQH, and 14 other people added this photo to their favorites.

    View 14 more comments

    1. Miloš Prague 39 months ago | reply

      Very ineresting, thanks for the lesson! HSS

    2. i.m.j. 39 months ago | reply

      Very wonderful effect. It's a shame the bottom it of the set-square has been cropped off.

    3. jomak14 39 months ago | reply

      Fascinating iridescent tones! HSS!

    4. Shelly~♥~ 39 months ago | reply

      creative awesome sliding
      HSS

    5. steeladw 39 months ago | reply

      Super shot. HSS

    6. heather ~ 39 months ago | reply

      neat - love the purple!
      hss

    7. misst.shs 39 months ago | reply

      Beautiful image. Great sliding! HSS

    8. Roberto G Garza [deleted] 39 months ago | reply

      Beautiful image! Fantastic color processing!! HSS Saludos

    9. marysmyth(NOLA 13) 39 months ago | reply

      This is gorgeous! Fabulous treatment. HSS!

    10. gezty - coming back 39 months ago | reply

      Wow, amazing ! HSS !

    11. ReporterErin 39 months ago | reply

      This is really cool! I love all those colors. HSS!

    12. Johanna Bocher 39 months ago | reply

      This. Is. Awesome!

    13. Poet Christopher Robin [deleted] 38 months ago | reply

      Nice work indeed

    14. A New Perspective 37 months ago | reply

      this is so sick! love it

    15. AndyH1983 36 months ago | reply

      Excellent shot.....will definitely be having a go at this technique

    16. nick.photo 36 months ago | reply

      nice birefringence!

      I'm a geologist and get to work with polarizing microscopes all the time.

    17. Andy Sum 35 months ago | reply

      Interesting! I'll have to try that technique one day :-)

    18. photocillin 35 months ago | reply

      coolio. love to experiment

    19. Jorge Cardim 11 months ago | reply

      Nice shot and colors!

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