Photomicrography

Discussion in 'Beyond the Basics' started by Meysha, Apr 18, 2005.

  1. Meysha

    Meysha still being picky Vicky

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    I didn't really know where to post this so I took a shot.

    So I know we've got our little Macro Guessing Game thread, but you should check out what this guy does with a microscope! It's absolutely awesome the colours of these crystals and molecules that he gets.
    http://www.oncloserinspection.com/

    There are also movies of growing crystals that are amazing to watch.
    What blew my mind were the cross polarized crystals. The colours = WOW!

    BTW what is cross polarizing? Is it just putting two layers of polarizing filter infront of the camera - but so each of them have different effects.
     
  2. ferny

    ferny TPF Noob!

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    This thread would be better off in the general forum I think. It's just like normal photography but with a different lens. I've given it a go using a reversed lens on a spotting scope. It's almost impossible to get a good focus because nothings stable but you get similar results.

    I think it's when you polarize the light source and have a polarizer on your lens. If you do it with plastics you get funky colours around the stress lines. Little rainbows.
     
  3. terri

    terri Administrator Staff Member Supporting Member

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    Agreed. :D
     
  4. Unimaxium

    Unimaxium TPF Noob!

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    get yourself one of these, and you could make those yourself. Notice in the image that it has what looks like a D2X attached to the front :drool:
     
  5. Meysha

    Meysha still being picky Vicky

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    WOW!!!!!!!!!!!!!!!!!!!!
    Did you check out the brochure for that thing! That is so awesome... and soooo expensive, i imagine. Too scared to even go looking for a price.
     
  6. Unimaxium

    Unimaxium TPF Noob!

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    I can't even find any prices for it. I think you have to get a custom quote from a dealer. The only price I could find was a lab that owns one that rents access for $15-30 per hour. :shock:
     
  7. Sergiozal

    Sergiozal TPF Noob!

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  8. ferny

    ferny TPF Noob!

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  9. Meysha

    Meysha still being picky Vicky

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    So it's just 'ultra' polarising? to put it in other words.

    Here's what I understood:
    You polarise the light from the flash so only polarised light is hitting the object.
    Then the polariser on the camera takes care of the rest of the ambient light and also makes sure all the flash light is polarised.
     
  10. Sergiozal

    Sergiozal TPF Noob!

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    Kind of.
    When you polarize the flash light in one direction, you can control better what is going to pass through the polarizer filter. If you put two polarizer filters and cross them, there will be no light passing (99,99%)
    It is a good way to make an adjustable neutral density filter :)
     

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