Sony ILCE-7RM4 Operating Instructions - Page 89
Notes on continuous movie recording, of the camera.
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••The duration of time available for movie recording varies depending on the file format/recording settings for movies, memory card, ambient temperature, Wi-Fi network environment, condition of the camera before you start recording, and condition of the charging of the battery. The maximum continuous recording time for a single movie shooting session is approximately 13 hours (a product specification limit). Note ••The recordable time of movies varies because the camera is equipped with VBR (Variable Bit-Rate), which automatically adjusts image quality depending on the shooting scene. When you record a fast-moving subject, the image is clearer but the recordable time is shorter because more memory is required for recording. The recordable time also varies depending on the shooting conditions, the subject or the image quality/size settings. ••The times shown are recordable times using a Sony memory card. About this product Notes on continuous movie recording ••High-quality movie recording and high-speed continuous shooting require large amounts of power. Therefore, if you continue to shoot, the temperature inside the camera will rise, especially that of the image sensor. In such cases, the camera will turn off automatically because the surface of the camera is heated to a high temperature or the high temperature affects the quality of the images or the internal mechanism of the camera. ••The duration of time available for continuous movie recording when the camera records with the default settings after the power has been turned off for a while is as follows. The values indicate the continuous time from when the camera starts recording until the camera stops recording. Ambient temperature Continuous recording time for Continuous recording time for movies (HD) movies (4K) 20°C (68°F) Approx. 60 min. Approx. 60 min. 30°C (86°F) Approx. 60 min. Approx. 30 min. 40°C (104°F) Approx. 60 min. Approx. 10 min. [Auto Power OFF Temp.]: [Standard] HD: XAVC S HD (60p 50M/50p 50M, when the camera is not connected via Wi-Fi) 4K: XAVC S 4K (24p 60M/25p 60M, when the camera is not connected via Wi-Fi) GB 89