a mentor in infrared photography perhaps?

Discussion in 'Beyond the Basics' started by thereforeiamx, Jun 2, 2008.

  1. thereforeiamx

    thereforeiamx TPF Noob!

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    I'm looking for a mentor who'll guide me in infrared photography. I just got the Hoya r72 an hour ago and started shooting a bit in my backyard.

    Feel free to PM me!
    I would appreciate it if someone would be able to help out.
    :wink:
     
  2. doenoe

    doenoe TPF Noob!

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    i think its best to read up on it a bit first. Just google it and you will find tons of information about it. Then just head out and try.....if you got questions after that, post it here and you most likely get the answers :)
     
  3. Helen B

    Helen B TPF Noob!

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    NYC? Sounds convenient. Drop me a PM if you wish.

    Best,
    Helen
     
  4. thereforeiamx

    thereforeiamx TPF Noob!

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    well, i custom WBalanced the green grass, but the photos came out overly magenta. i tried manipulating them on CS3, using curves but nothing significant happened. :/
     
  5. doenoe

    doenoe TPF Noob!

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    i dont know if your camera caon shoot RAW, but i fit can do that. Its rather easy to adjust the WB in CS3 then. I did the custom WB in the beginning, but shooting RAW is way easier.
     
  6. thereforeiamx

    thereforeiamx TPF Noob!

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    i just realized that i was taking the wb reading without the filter on. dumb mistake!

    but it's weird. the lowest temp i can go down to is 2500K?
     
  7. Socrates

    Socrates TPF Noob!

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    My understanding is that that filter is intended for use with IR film. It's pretty much useless with regular film and digital cameras.
     
  8. Bifurcator

    Bifurcator TPF Noob!

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  9. thereforeiamx

    thereforeiamx TPF Noob!

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    my camera, the sony a100, seems to be having a lot of difficulties with IR.

    firstly, i heard there's some sort of internal filter that blocks IR. hence, i would need a much longer exposure [25secs +]

    and the photos that come right from the camera are very flat and not contrasty. there are barely any whites. foilage take on a green tone and the sky is awkwardly green with a dash of brown.

    to top it off, my zoom lens makes hot spots. :(
     
  10. Helen B

    Helen B TPF Noob!

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    The dyes used in many of the filters that form the Bayer matrix are transparent to infrared - hence the ability of the green and blue filters to pass infrared radiation. I use the blue channel as the IR channel for false-colour infrared, by removing the blue light with a deep yellow filter:

    [​IMG]

    What you see as blue was the green light, what you see as green was the red light and what you see as red was the infrared radiation. Roughly, anyway.

    Best,
    Helen
     
  11. Bifurcator

    Bifurcator TPF Noob!

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    Yeah, I gotcha... pretty sweet! Thanks for sharing!
     
  12. Bifurcator

    Bifurcator TPF Noob!

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    Yup, not all cameras work well with IR and not all lenses (as you've noticed) do either - the links I posted cover it in more detail. Konica/Minolta and Sony/Konica/Minolta are among the worst reputation-wise for IR photography - OTOH, I hear they aren't too difficult to modify if you're handy with the tiny tools. I've not owned a Sony camera yet so I don't know first hand about them. The FujiFilm IS-Pro IR/UV camera looks really interesting. :)
     

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