When to flip a video.
Flipping a video describes the creation of a mirror image of the original footage. Whether you’re editing a professional video shot with an HD video camera or a vacation movie shot with a camcorder or iPhone, you don’t want your cuts to disorient the viewer. If, for example, your subjects move left to right in one shot, cutting next to a shot of them moving right to left can throw off the viewer’s eye trace, or ability to track the action. (Maintaining eye trace is the third rule of video editing.) In many cases, you can salvage the shot, and keep the flow consistent, by flipping the video clip.
How to flip a video.
Use the Horizontal Flip or Vertical Flip effects in Adobe Premiere Pro, which is compatible with nearly every low- or high-definition video file format, including FLV, MOV, WMV, and MP4 files. With Horizontal Flip, you create a mirror image of the original clip — what’s on the left now appears on the right. With Vertical Flip, the video appears upside down. After uploading your footage to the project and finding what you want to flip, follow these steps: