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Volume 10 Edition 2 03/15/2007 |
| Hi, in this article you learn how to test your camera to see if it does Infrared. The article was submitted by Larry Berman. You may see the complete article on this website and also learn more about digital infrared. Just click here to see complete article Coming soon is a before and after of Larry's Wonderful color infrared. | |
| Can My Camera Do This?
Most CCDs are sensitive to more than the visible light spectrum. This can cause problems with color balance, so manufactures often place a "hot mirror" in front of the CCD to block excessive infrared light. There is a simple way to tell if your digital camera is going to see IR. Just take a TV or VCR infrared remote control and point it directly at your camera. Push a button on it and look on the LCD for a spot of light. You should be able to see the infrared beam from the remote as a point of light. If you do, you will be able to shoot IR images with your camera. |
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Next, you will need to buy a filter that will block all visible light, but
allow infrared radiation to pass. Different filters block varying amounts of
shorter wavelength light. In increasing degree of strength are the Wratten #89B,
Wratten #88A, Wratten #87, and Wratten #87C filters. I have had great results
with an inexpensive 88A filter from Harrison and Harrison (1835 Thunderbolt
Drive Unit E, Porterville, CA 93257-9300 phone 559-782-0121)
If your camera has no thread for a screw in filter, you can buy gelatin filters
and cut them down to fit over your lens, and tape them in place. I find gelatin
filters especially helpful for supplemental lenses like Nikon's fisheye. I just
cut a small circle the size of the rear element of the lens, and place it
between the camera and fisheye before I screw it in place.
Please check out Larry's website here
http://infrareddreams.com/how_to_shoot_ir.htm to see more of this article.
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