There is a time limit, within 30 minutes, but the continuous recording time of the camera within 30 minutes is mainly a standard problem, not a technical problem, so it is not a problem to record for more than 30 minutes or even 1 hour as long as the high temperature alarm is turned up in actual use.

Compared with a6400, the video specification of a6600 has not changed. The official statement is that video autofocus has been enhanced, but it doesn't mean much. The a6600 is basically the a6400 plus the anti-shake function of the fuselage and a large battery (and the weight gain is about 100g at the same time), which is of little significance for video shooting, because the video shooting must be put on the shelf or stabilized, not just the anti-shake function of the fuselage or the anti-shake function of the lens. If you want to shoot for a long time, you must have an external power supply, and no matter how big the battery is, it is not enough.

In fact, if Sony is not used for some reason, Fuji, XT3 or XT4 should be selected for half a camera at this price, and the video performance is obviously higher than a6400 and a6600.