Some of you have noticed that I have been experimenting with infrared photography. I’m certainly NOT an expert, but I am in love with the concept of being able to visualize what’s not visible to our human eyes but visible to the camera lens.
Let’s first review the electromagnetic spectrum. If you recall from basic physics, the wavelength of violet is about 400 nm; going down to deep red the wavelength increases, from about 460 nm (blue) to 540 nm (green) and then yellow (600 nm) and finally deep red (750 nm). Beyond violet and below deep red there are radiations the human eye cannot see, i.e., ultraviolet (UV) and infrared (IR).
Wavelengths that range from about 700 nm to about 900 nm are what’s captured in the picture. The colors were altered from their original red to make the picture look more appealing.
Isn’t it amazing that even if you cannot see the IR world you have the ability, using your camera, to take a peek at what’s inside this world that you cannot see with your own eyes?
March 4, 2013