Sony ILCE-6500 Manual page 405

Continuous shooting is possible for approximately 29 minutes (a product specification limit).
The continuous recordable time may differ in the following situations:
When the file format is set to MP4 (28M): Approximately 20 minutes (limited by file size
of 4 GB).
When shooting slow-motion/quick-motion movies: Recording will automatically stop
when the recorded file reaches approximately 29 minutes (the played back movie
reaches approximately 29 minutes). (Recording will automatically stop when the
recorded file reaches approximately 15 minutes if [
[60p/50p] and [
The times for slow-motion/quick-motion movies are playback times, not recording times.
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.
Notes on continuous movie recording
It requires a lot of power to perform high quality movie recording or continuous shooting. 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 that can affect the quality of the images or the internal mechanism of
the camera.
The following values are the continuous times from when the camera starts recording until the
camera stops recording.
Ambient temperature: 20°C (68°F)
Continuous recording time for movies (HD): Approx. 29 minutes
Continuous recording time for movies (4K): Approx. 20 minutes
Ambient temperature: 30°C (86°F)
Continuous recording time for movies (HD): Approx. 29 minutes
Continuous recording time for movies (4K): Approx. 20 minutes
Ambient temperature: 40°C (104°F)
Continuous recording time for movies (HD): Approx. 29 minutes
Continuous recording time for movies (4K): Approx. 20 minutes
[Auto Pwr OFF Temp.]: [Standard]
HD: XAVC S HD (60p 50M/50p 50M, not connected via Wi-Fi)
4K: XAVC S 4K (24p 60M, not connected via Wi-Fi)
The duration of time available for movie recording varies with the temperature, file format/record
setting for movies, Wi-Fi network environment, or condition of the camera before you start recording.
If you frequently recompose or shoot images after the power is turned on, the temperature inside the
camera will rise and the recording time available will be shorter.
Frame Rate] is set to [30fps/25fps].)
Record Setting] is set to