08 Apr 2007 677 views
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comments (4)

  • Ellie
  • 9 Apr 2007, 00:05
OK, so please tell me what you have done to make this picture? It looks almost like a negative, but it can't be because the rails would be almost white.

I like it.
David Bird: Hi Ellie - the image was made using an infrared filter. The Hoya R72 filter I used blocks normal light but allows through infrared radiation. As you can see its gives a stange tonality to the shot. I used a custom white balance (calibrated to green grass in full sunshine)- I have not adjusted the colours in this image - this is how it comes out of the camera. Exposure times using this filter can be quite long (usually 6 - 10 seconds) so the camera was mounted on a tripod.
  • Ellie
  • 9 Apr 2007, 22:52
Thanks, it's really interesting to see how it works. I've got such a lot to learn, and such a lot of experimenting to do. smile
excellent post processing!
or not post processed after i read your comments to ellie. very cool photograph tho david. very creative.

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camera Canon PowerShot A640
exposure mode full manual
shutterspeed unknown
aperture f/0.0
sensitivity unknown
focal length 0.0mm
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