Two good things in life:
- Picking up trash
- Spending time in the outdoors taking photos
So why not try making a pinhole camera out of an old can? It’s so easy to do and I absolutely love the dreamy images produced, where each day’s arc of the sun becomes a solid white stripe across the page.
Here is a short video of my first attempts, followed by a step-by-step guide if you’d like to try it yourself.
How to make a Camera out of a Can
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Find Two Cans
Pick up two empty drinks cans—ideally large 440ml beer cans rather than standard Coke cans. -
Buy Photographic Paper
Get light-sensitive paper like Ilford Multigrade V RC Deluxe Pearl 5×7. This reacts to light and captures your image. You can buy it here. -
Prepare the Cans
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Rinse both cans.
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Cut the top off one can—this will be your camera body.
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Cut the second can about 5cm from the bottom—this will be your lid.
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Make the Pinhole
Use a pin (not a drawing pin) to make a tiny hole slightly above halfway up the camera body. Cover the hole from the outside with a small piece of gaffer tape until you’re ready to expose the photo. -
Load the Paper (in very dim light)
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Remove one sheet of photographic paper.
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Curl it inside the camera body, shiny side facing the pinhole, matte side against the metal.
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Leave a small gap in the paper where the pinhole is.
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Seal the Camera
Fit the lid onto the camera body and tape them together securely. -
Position the Camera
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Aim the camera south to capture the arc of the sun as it moves across the sky.
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The pinhole acts like an ultra-wide-angle lens—wider than even the 0.5x mode on your phone—so place it closer to your subject than you might expect.
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Tilt the camera slightly upwards to ensure it captures the sun’s path.
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Secure the Camera
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Fix the camera in place using gaffer tape or cable ties.
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Once secured, remove the gaffer tape “lens cap” from the pinhole and stick it somewhere safe on the can so you can re-cover it later.
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Be Patient
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Exposure time can be anywhere from 24 hours to several months.
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For your first attempt, try a 24-hour exposure to quickly learn and adjust if needed.
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When you’re ready to collect it, cover the pinhole again with the gaffer tape.
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Process the Image
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In very dim light, open the can and remove the photographic paper.
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If successful, you’ll see a faint pink and white image.
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All white? The paper was likely inserted the wrong way around.
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All pink? It’s overexposed—maybe the pinhole was too large or too much light got in.
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Digitise the Photo
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Work quickly to avoid further exposure.
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Tape the paper flat and photograph it using your phone or camera, or scan it.
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Edit the Image
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Use your phone’s editing tools or a program like Photoshop to:
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Invert the image (it will become bluish).
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Adjust brightness, contrast, and curves to bring out the details.
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Hopefully, your first solargraph turns out beautifully. It’s a slow, thoughtful way to see time pass—and a satisfying creative project using little more than litter and light.
I have really enjoyed experimenting with these cameras and I would like to thank Ian Ruhter whose Instagram video first blew me away, and Justin Quinnell whose YouTube videos were really helpful for me.