1. A camera for displaying a target, comprising: an infrared imager for receiving infrared energy from a target; a visible light imager for receiving visible energy from a target; a processing sub-system in communication with said infrared imager and said visible light imager, said processing sub-system processing the outputs of said infrared imager and said visible light imager; a display in communication with said processing sub-system for displaying an infrared image corresponding to the target; and at least one visible light source projecting a visible line segment on the target, said visible line segment oriented parallel to a row or a column of pixels of the infrared imager; wherein said processing sub-system processes outputs of said visible light imager and said infrared imager to identify a pixel corresponding to said visible line segment and said display displays said visible line segment to locate a target.