A double exposure puts two images on one frame of film. To shoot one, expose the frame once, prevent the film from advancing, and expose it again, giving each pass less light than normal so the combined image is not too bright.
Check Your Camera First
Not every camera permits a second exposure on the same frame. Some have a dedicated multiple-exposure switch or lever. Others allow you to hold the rewind button while you cock the shutter. Some simple models let you fire again with no advance at all. Check the manual or the maker’s page before you use a roll, and remember that on some cameras a failed attempt simply advances the film.
Plan the Exposure
Film adds light with each pass, so two normal exposures would give an image about one stop too bright. To balance this, reduce each exposure.
- For two exposures, underexpose each by about one stop. Set the ISO dial to double the film speed, so ISO 200 for a 100 speed film.
- For three exposures, underexpose each by roughly one and a half stops.
- Negative film is tolerant of overexposure, so slight errors are often forgiven. Slide film has less room.
Treat these as general guidance, and keep notes so you can improve next time.
Step-by-Step Process
- Load a roll of film and confirm how your camera handles multiple exposures.
- Meter your first subject and set the exposure about one stop under the reading.
- Take the first photograph. A strong, simple shape such as a portrait in profile works well.
- Use the multiple-exposure feature, or the rewind button method, so the film stays on the same frame.
- Choose a second subject with texture and detail, such as leaves, a skyline or city lights. Meter and set exposure one stop under again.
- Take the second photograph, then advance the film normally to the next frame.
Choosing Subjects That Combine Well
The brightest parts of the second exposure show most in dark areas of the first. This is why a dark silhouette against a bright sky makes an ideal base, since the second image fills the dark shape with detail. Busy scenes layered with busy scenes tend to turn muddy, so contrast between a simple form and a textured scene is a reliable approach.
FAQ
Can I do this on any film?
Yes, any 35mm film works. Many people like to use a medium speed negative film, because it has room for exposure variation.
Will the frames overlap with neighbors?
They can if the advance is not exact. Leave a small gap at the end of the roll, and expect a few misses on the first try.
The Short Version
Confirm your camera can do multiple exposures, reduce each exposure by about a stop, and pair a simple dark shape with a textured scene. Keep notes on each frame, because film results show only after development.
