Want to know how to make a pinhole camera with a pringles can? This simple DIY turns an empty snack tube into a working camera that projects a real image on a translucent screen.

I will show the exact materials, two safe ways to make the pinhole, and clear step-by-step photos. The build takes about 30–60 minutes and is perfect for teens or classroom projects with adult supervision for cutting.

You will also learn why a pinhole camera works, how to capture photos with photographic paper or your phone, and quick fixes for dim or blurry images. Simple troubleshooting tips will help you get sharper, higher-contrast pictures fast.

By the end you will have a working Pringles-can pinhole camera and easy ideas to improve your results. Ready to turn a snack can into a tiny camera? Let’s get started.

Materials Needed

If you want to learn how to make a pinhole camera with a pringles can, gather a clean, dry Pringles can first. The regular tall size works great for classrooms and quick projects.

For the viewing screen, use wax paper or tracing paper, stretched tight. Frosted plastic or translucent baking paper can also work if you already have them.

For the pinhole, use a small square of aluminum foil or a thin metal shim, plus a pushpin, needle, or awl, and a small sanding pad to smooth the hole. Keep the hole tiny and round for best sharpness.

Darken the inside with black matte spray paint or line it with black construction paper. Have a utility knife, scissors, ruler, and a pencil ready for clean cuts and accurate marks.

Use black electrical or gaffer tape for light sealing, and a dab of glue if needed. Optional extras include a tripod or clamp, a scrap of black card for a shutter, photographic paper for real exposures, and a changing bag if you’ll load light-sensitive paper.

Always cut and pierce with adult supervision, and wear gloves and eye protection. Expect 30–60 minutes of build time, making it perfect for teens or adult‑supervised kids.

Learn How to Make a Pinhole Camera out of a Pringles Can

You’re building a tiny camera obscura that projects an inverted image onto a translucent screen.

Step 1: Prep the can. Empty, wash, and dry the inside, then remove the plastic lid and set it aside because it can help hold the screen later. If the interior is shiny, paint it matte black or line it with black paper to kill reflections that cause haze.

Step 2: Make the screen. Cut a circle of wax paper a bit larger than the opening so you can stretch it taut across the top. Snap the original plastic lid on to clamp it, or tape around the rim so it’s smooth and wrinkle‑free; if you see ripples, replace the sheet and pull it tighter.

Step 3: Mark the pinhole center. Flip to the opposite metal end that will face the scene and find the middle, marking it with a dot. Measure the inside distance from the screen to that dot and note it as your focal length, since it affects brightness and sharpness.

Step 4: Make the pinhole. Method A is easy and precise: tape a 2 cm square of aluminum foil over the center mark and pierce it once with a fine sewing needle; gently spin the needle tip to round and smooth the edge, or kiss it with fine sandpaper. Method B is durable but riskier: punch a tiny hole through the can’s metal base with a small nail, then file and polish the edges; only do this with protective gear and supervision.

Step 5: Make a shutter. Tape one side of a small piece of black card over the pinhole as a hinged cover, or use a piece of opaque tape you can peel back. The goal is to block light completely and let you open and close it cleanly.

Step 6: Seal for light. In a dim room, shine a bright phone flashlight around seams and look for leaks inside the can. Cover every gap with black tape so only the pinhole admits light; leaks cause ghosting and low contrast.

Step 7: Reassemble and test. If you used the lid to clamp your screen, press it on firmly and check the screen is flat. Point the pinhole at a bright scene, open the shutter, and look at the wax-paper screen from the other end; you should see a dim, crisp, upside‑down picture.

If you’re following this guide on how to make a pinhole camera with a pringles can for a class, you can also learn to make one with small classroom tweaks. Different teachers use slightly different screen materials, so compare results.

Variations for real photos: load photographic paper against the screen end in complete darkness, shiny side facing the pinhole. Close the shutter, cap the can, and bracket exposures when shooting; in bright sun try 5, 15, and 60 seconds to start, then develop normally.

How Does a Pinhole Camera Work?

Light travels in straight lines, so each point in the scene sends a narrow ray through the tiny hole to one spot on the screen. Because the rays cross at the hole, the image appears inverted top‑to‑bottom and left‑to‑right.

There is a trade‑off with hole size. A smaller hole is sharper but dimmer, and if it’s too small, diffraction softens the image; a bigger hole is brighter but blurrier.

For a Pringles‑can focal length, try a pinhole around 0.2–0.6 mm, roughly the size of a fine needle. Test a few sizes and compare, because each can and screen behaves a little differently; this hands‑on tuning is part of the charm.

For a simple walk‑through of the science and variations, see this science explainer. Lenses bend and focus more light to a point and can be refocused, while pinholes rely on geometry and a single fixed distance.

How to Use Your Pinhole Camera

For viewing mode, take it outdoors on a bright day and aim at a high‑contrast subject like buildings, trees, or distant hills. Stand in shade, open the shutter, and look at the wax‑paper screen; stabilize the can with a tripod or clamp for a steady image.

To change magnification, move the camera relative to the subject. Closer makes the image larger and dimmer, farther makes it smaller and brighter, so use sunlit scenes for bigger views.

To capture on paper, load photographic paper inside in total darkness and close the shutter. Mount the can on a tripod, open the shutter for a bracketed exposure, then develop as usual; start with 5, 15, and 60 seconds in sun and adjust from there.

You can also photograph the projection on the wax paper with your phone. Cup your hands to block stray light and tap to expose for the dim screen; this quick trick saves what you see without a darkroom, and this activity guide offers extra classroom ideas.

Now that you know how to make a pinhole camera with a pringles can, try different scenes and times of day. Early and late light gives gentle contrast and surprisingly sharp detail.

Tips for Best Results

If the image is too dim, use a brighter scene or try a slightly larger pinhole. Avoid pointing directly at the sun, which can wash out contrast and damage eyes.

If the image is blurry, smooth the pinhole edges or test a different needle size. Make sure the interior is matte black and the screen is tight and flat.

If you see ghosts or low contrast, chase light leaks with black tape until the only light path is through the pinhole. An upside‑down image is normal and proves the build is working.

Make several foil inserts with different hole sizes and label them so you can swap quickly. Photograph your steps and the final projection to compare results across builds.

For classrooms, keep cutting tools in a supervised zone and pre‑cut foil squares. Add a printable materials list and a small troubleshooting chart to help students fix dim or soft images fast.

What People Ask Most

Final Thoughts on Making a Pringles-Can Pinhole Camera

Remember that opening idea of turning a snack can into a working camera? This guide walks through every material and step so you can build a Pringles-can pinhole and actually see how light makes images — even with a focal length near 270. You’ll get a low-cost, hands-on way to project and capture scenes while learning optics.

One realistic caution: cutting and piercing metal can be dangerous, so adult supervision, gloves, and eye protection are a must. The project suits curious teens, teachers, and DIY adults who want a classroom-friendly experiment or a creative solo project, and it’s flexible enough for basic viewing or exposing photographic paper.

We answered the opening hook by listing exact supplies, step-by-step assembly, simple physics, and practical shooting tips so you won’t be guessing at any stage. Expect slow-shutter surprises, trial-and-error, and satisfying moments when geometry and light finally make a picture — it’s a tiny, reliable way to make big discoveries.