1. A camera ( 1 ) arranged to generate an IR image ( 21 ) and a visible light image ( 23 ), said camera comprising a thermal imaging part ( 3 ) for registering IR radiation from a first field of view, a visible light imaging part ( 9 ) for registering visible light from a second field of view at least partially overlapping with the first field of view, and a processing device ( 15 ) for processing the information related to the registered IR radiation and the registered visible light information, said camera ( 1 ) being characterized in that the processing device ( 15 ) is arranged to identify any moving objects that are detectable by the thermal imaging part ( 3 ) and not by the visible light imaging part ( 9 ), and presenting said moving objects, if any, in such a way that they will be easily recognizable by an operator.