288OthersQ&A Troubleshooting■ Motion PictureCannot record motion pictures.• When a large capacity card is used, you may not be able to take a picture for a while after you turnon the camera.Motion picture recording stops midway.• When the ambient temperature is high or motion picture is recorded continuously, the camera maydisplay [ ] and stop the recording. Wait until the camera cools down.• The speed class of a required card varies depending on [Rec Format] and [Rec Quality] of a motionpicture. Be sure to use a card of the recommended speed class (→26).Sometimes focus adjustment with Auto Focus mode is difficult while recording 4K motionpictures.• This may occur when taking a picture by reducing the Auto Focus speed in order to adjust thefocus at high precision. This is not a malfunction.A noise, such as a clicking or buzzing noise, is recorded on a motion picture. Audio isrecorded at low volumes.• With recording in a quiet environment, the sound of aperture, focus and other actions may berecorded in motion pictures. This is not a malfunction. The focus operation during recording ofmotion pictures can be set to [OFF] in [Continuous AF] (→151).• If you block the microphone with your fingers while motion pictures are being recorded, the audiomay be recorded at a low volume or may not be recorded at all. In this case, the camera may pickup the lens operating sounds more easily.Operating sounds are recorded in a motion picture.• We recommend recording motion pictures in Creative Video Mode if you are concerned aboutoperating noise. (→77)■ FlashNo flash emitted.• The flash becomes unavailable in the following cases.– The flash is closed.– Flash set to [ ] (Forced Flash Off). (→142, 144)• Set [Shutter Type] to [AUTO] or [MSHTR]. (→176)• Set [Silent Mode] to [OFF]. (→175)