And, finally, if all else fails, remember that the iPhone 4S shoots at 1080p, which means your video image is capturing 1920 lines of vertical resolution and 1080 lines of horizontal resolution. That's enough data to give you some wiggle room for reframing if you're editing your video footage. In your post-production software, you can enlarge the video, giving you room to move things around without having to look at black space around any portion of the video. With the video enlarged, you can reposition to better use the rule of thirds or add/subtract headroom, or to crop some messes off the edge of the frame. If you enlarge too much, your image will wind up being grainy. A small amount of enlargement (say, less than 10–15%) will often go entirely unnoticed in terms of image quality, but can make all the difference in image framing.