Traditional black & white infrared photography uses films that are sensitive to wavelengths between 700 to 900 nm range. Because the range is invisible to human eyes, it creates a fascinating eerie beauty of infrared photography.
To create these images, you can add filters over digital cameras to block infrared wavelengths or alter your existing camera. Both ways will cost extra investment. A third alternative, is to use software to simulate infrared effects using PhotoDirector. While there are many styles of infrared photography, this tutorial will guide you through a classic one:
To start with, this is the original photo of linden trees.
In PhotoDirector, convert the image to black and white.
Adjust the color channels by increasing yellow and green and decreasing blue, violet and red.
Shift the color temperature to blue to increase darkness in the sky.
Adjust tones to bring out the glow of the foliage.
The final image:
If you like this type of infrared photography, the preset can be downloaded from Directorzone here.