If you are just shooting video, then A7 is ok, as long as you pay attention to bring the spare battery and SD card.

But if there is a requirement for video recording, or it is commercial, it will definitely not work. After all, A7 is only a micro-order, and taking photos is the main business.

You may need some professional photographic equipment, such as Sony's shoulder camera, long-handled microphone and so on. In order to obtain more professional images,