creating a double image using slow shutter speed

 Aperture: f/16
Shutter speed: 3.0
To create a double image you would need to know how long your shutter speed is. A slower shutter speed would help get the double image in the photograph. Also, if you are taking a picture of a person you should let them know when to move. You should tell them to move at half the time the shutter speed is. When the shutter speed is slower, it allows more light into the photo, which could make it a more washed out image. If the shutter is quicker, that gives the camera less time to allow the light in the photo creating more of a darker image. The placement of the person in the photo is also important if you want it to be centered. I started off with her a little off-center so when she moved over, the whole image would be in the center of the frame.