Look for other options. Perhaps you should look down on the subject and get more uniform grass than chaotic trees in the background. Or maybe you should go the opposite direction and lose ground objects by shooting up toward the sky. Anything do to cut down on the background clutter will make the codec happier. Portrait of Success Consumer camcorders often come with a portrait mode.
All lenses let light into the camera through a hole.
Since the goal of a portrait is to focus on the subject at the expense of the background, a portrait mode on a camcorder is to make the subject sharp while the background is out of focus. It does this by raising the camera shutter speed. Professional camcorders don't always have a convenient portrait mode to choose from. In that case, just raise the shutter and open the aperture manually. If you have had trouble following the two previous paragraphs, let's stop and catch up.