How to record a baseball swing video that is worth analyzing.
Better analysis starts before the swing. Camera position, stability, framing, light, and consistency determine whether later comparisons are trustworthy.
Choose the view for the question
A side view is useful for stride, posture, and sequence. A rear or front view can help with direction and alignment. Avoid a diagonal angle unless it is the only safe option.
Place the phone at a repeatable height
Waist-to-chest height is a practical starting point. More important than a universal height is using the same height and aim when comparing sessions.
Keep the entire athlete and bat path visible
Leave room above the helmet, below the feet, behind the catcher or net, and through the follow-through. Do not let the frame cut off the bat, stride foot, or finish.
Stabilize and protect the phone
Use a tripod, fence mount, or stable support outside the path of players, balls, bats, and foot traffic. Never trade safety for a cleaner angle.
Use good light and avoid digital zoom
Bright, even light helps both human review and pose overlays. Move the camera when safe instead of relying on digital zoom, which can reduce detail and amplify shake.
Keep comparison conditions consistent
Record the view, drill, pitch source, intent, and any major equipment change. Those details explain differences that the pixels alone cannot.