I’ve heard some filmmakers advise to keep your shots short, under 30 seconds ideally or even under 10 seconds. This is supposed to make the footage easier to edit, and I can see how it would. However, I strongly disagree with this mentality, and speak from experience when I say:
There’s no reason to end a shot hastily. Ever.
It’s true there are times when you should grab your camera and run in order to protect your equipment and/or avoid certain death. In fact, there are plenty of these times. But if you’re ever tempted to press the button and end the shot in a rush, have some compassion for the editor. It’s so much easier to chop out shaky sections in post rather than magically make lost footage appear.
For example, during my filming of a video for the Adirondack Scenic Railroad, I intentionally took a shot of two people working with a camera and unintentionally picked up the dialogue of train folk in the background. When a conductor shouted, “All Aboard!” I immediately ended the shot, since I had plenty of footage of the two people I intended to film.
What I didn’t realize is how desirable the background dialogue was going to be. My trigger-happy habits caused me to lose the iconic “All Aboard!” audio, which I cut in the middle of the phrase.
Lesson of the day: When in doubt, leave the camera rolling!