All digital cameras us sensors which are sensitive to infrared light. Most recent digitals incorporate an IR blocking filter just in front of the sensor that blocks a lot of this light. However, it does not block all. Thus all digital cameras are capable of shooting in IR, just the exposure times can be quite long. This can, in fact, be an advantage for some types of photography, giving a beautiful ‘otherworld’ look as plants move in the breeze and blur, for example.

For detailed coverage of shooting IR with  normal digital cameras, see the articles  here on our sister site, DIMi.