All digital cameras are quite sensitive to infrared.
So sensitive that the manufacturers add a special filter over the CCD sensor, to block infrared.
To get an effective infrared camera, this internal filter must be removed. Then you will have a good infrared camera but a not so good regular camera.
There are companies that do this bit of internal surgery on DSLR cameras. It costs from $200 to $300.
Here is one link:
Or you can just buy a special camera:
i have an Olympus E-500 Digital SLR, is there any way toatake ifrared photo's?