conversion http://www.adorama.com/alc/taginfo/conversion Article: Modify your your Digital Camera for Infrared Photography.Infrared photography is easier than ever, thanks to some clever, warranty-voiding customizations. <p><span style="font-size: small;">Because the imaging sensors in digital camera are sensitive to more than visible light, some manufacturers place an infrared cut-off filter in front of the chip to block IR light from striking it and causing color balance problems.</span></p> http://www.adorama.com/alc/article/8472