Wednesday, August 30, 2006

Digital Infrared Photography Equipment

In standard photography, you're capturing the image of objects reflecting light from a source. It's just the same with infrared photography, except that your objects are reflecting IR from a source rather than light.

To take infrared images, you need several pieces of equipment. First, and most importantly, you need a camera that's sensitive to IR. Then, you need an IR pass filter to block visible radiation and allow IR to hit the CCD. Finally, you need a light source to emit infrared radiance, and you also need a tripod. We'll step you through the equipment necessary to get started.

CCDs are naturally sensitive to near IR. However, hot mirror filters are added to the camera to block it because IR can contaminate the colors when you're shooting normal images. The better the quality of the hot mirror, the worse the camera will be at taking IR images because more IR is being blocked from reaching the CCD. This isn't saying that the camera is bad. In fact, the opposite is true, as it stands to reason that a better quality hot mirror filter improves the camera's abilities in standard light situations.

A lot of info about Digital Infrared Photography Equipment can be found here
http://www.nature-photography-central.com/DigitalInfraredPhotographyEquipment.html

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