How long can Canon 600D4G card photography take?

There are the following restrictions. If you touch any of them, the shooting will be interrupted:

1, the size of a single video file does not exceed 4G (the file format of the memory card is limited), and shooting can be restarted and saved as a second video file;

2. The length of a single video file does not exceed 29 minutes and 59 seconds (the EU limits the camera shooting time), and shooting can be restarted and saved as a second video file;

3, the photoreceptor is overheated, and it is necessary to stop shooting and rest for a while to cool the photoreceptor;

4. The memory card is too slow to keep up with the video storage speed (1080p requires a memory card with a speed of 6 or above);

5. The memory card capacity reaches the upper limit.

References:

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1920X 1080 HD video is 1 1 min, and 640X480 video takes 30 minutes.

I hope it helps you.