Thanks to all of you for the input. I'd better return the camera to its owner before some "further study temptations". Regards, Dennis. ----- Original Message ----- From: "Herbert Graf" To: Sent: Thursday, July 03, 2003 8:34 PM Subject: Re: [EE]:Digital Camera and Infra Red > > Yesterday at night I took my brother in law digital camera and > > tried to see > > what happen if I point it to an infrared led. This is the picture with my > > finger "illuminated". Sony DSC-S30. > > > > Do the camera-sensors capture the heat or the color? > > > > Just curious!. > > It is short wave IR, not long wave (i.e. thermal) IR. The sensors in > digital cameras are VERY sensitive to IR, so much so that most colour > cameras have built in IR filters to prevent the incoming IR from messing up > the colour picture. If you take this filter out you get a cheap mans night > vision system. TTYL > > -- > http://www.piclist.com hint: The PICList is archived three different > ways. See http://www.piclist.com/#archives for details. -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.