A low-cost video camera probe has been developed and used to observe full-scale pulverised coal flames in a single burner test facility. The probe incorporates a miniature video camera viewing through an "air window" at the probe tip, avoiding the possibility of solids deposition that may occur with a conventional glass window. The design has proved reliable and robust, but is cheap enough to be used freely without undue concern for accidental damage. Video images were used for flame monitoring during tests and archived to videotape for further analysis. A variety of digital image processing techniques have been employed to give enhanced visual maps of combustion patterns at different burner operating conditions. As well as presenting the data in a more convenient form for reporting, digital processing can also reveal features of the flames that could not be perceived by direct viewing of taped video recordings.