This is OK for recording sound from objects near the camera but, like any in-built microphone, its value is limited. It only hears the sound from where the camera is, not where your subject is, so it won’t pick up speech well unless it’s nearby (on-camera sound recording suffers very similar limitations to on-camera flash). For any serious video work you need an external microphone. These can attach directly to the accessory shoe – though you still have the limitations of on-camera sound recording – or they can connect by cable direct to the camera’s microphone socket under the connector covers . You can also use radio mics which operate wirelessly over longer distances than cables allow.