Take a photo using an invented filter - Fun at-home activities for Kids.

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Take a photo using an invented filter

Design and build a simple physical camera filter using colored gels or materials, then take and compare photos using your invented filter to explore effects.

Table of contents

Step-by-step guide to design and use an invented camera filter

What you need

Cardboard, scissors, tape, colored cellophane or translucent plastic sheets, rubber band or elastic band, pencil or hole punch, adult supervision required

Step 1

Gather all the materials from the list and bring them to a clear tabletop or desk.

Step 2

Decide what special look you want your filter to create like a warm orange glow bright blue tint or soft blur.

Step 3

Cut a rectangle of cardboard about the size of your phone camera area to make a filter holder.

Step 4

Use the scissors to cut a round or square hole in the center of the cardboard just a little bigger than your camera lens.

Step 5

Cut a piece of colored cellophane a bit larger than the hole so it can fully cover the opening.

Step 6

Tape the cellophane flat over the hole so light will shine through the color evenly.

Step 7

If you want a layered color, cut a second color of cellophane and tape it on top of the first piece.

Step 8

If you want patterns, gently punch a few tiny holes or tear a small shape in one layer to make star or stripe effects.

Step 9

Fasten the cardboard filter to your camera by holding it over the lens and wrapping the rubber band around the phone or using small pieces of tape to keep it lined up.

Step 10

Set your camera to photo mode and keep the same zoom and brightness settings for every picture to make a fair comparison.

Step 11

Take a clear photo without the filter so you have a baseline picture to compare.

Step 12

Put your finished filter over the lens and take a photo using your invented filter.

Step 13

Try one quick change like moving the filter a tiny bit or adding one more layer and take a third photo to see the difference.

Step 14

Look at the three photos side by side and write or draw one sentence about how the colors and light changed with your filter.

Step 15

Share a photo of your finished filter and your favorite filtered photo on DIY.org to show your invention to others.

Help!?

I can't find colored cellophane — what can I use instead?

Use a piece of colored tissue paper, a translucent plastic folder, or cut a thin colored plastic shopping bag to cover the hole in the cardboard just as you would the cellophane.

My filter keeps slipping or the color looks uneven — what should I do?

Smooth the cellophane flat before taping, make sure the hole you cut is just a little bigger than the camera lens, and secure the cardboard with a rubber band or small pieces of tape so it stays aligned over the lens.

How can I change this activity for a 4-year-old or a 12-year-old?

For a 4-year-old have an adult pre-cut the cardboard hole and one sheet of cellophane for them to tape and punch one big shape, while a 12-year-old can layer multiple colors, punch tiny patterns, control zoom/brightness, and write the comparison sentence themselves.

How can we make the filter more creative or use it for a school project?

Try layering different colored cellophane, tearing small shapes or adding sticker cutouts for patterns, take the baseline and changed photos to compare effects, and annotate the differences before sharing on DIY.org.

Watch videos on how to design and use an invented camera filter

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Become an Epic Kid Photographer

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Facts about camera filters and basic optics

🎬 Colored gels (filters) have been used in theater and filmmaking for over 100 years to tint light and set a scene's mood.

🎨 Stack two colored gels and your camera will mix the light — red + blue light shows up as purple in the photo.

🌈 Digital camera sensors record red, green, and blue (RGB) light — combining red and green light appears yellow on images.

🔍 Pinhole cameras need much longer exposures than regular lenses because the tiny hole only lets in a little light.

♻️ You can make great DIY filters from everyday items like cellophane, colored plastic folders, sunglasses lenses, or cling wrap.

How do I design and use an invented camera filter for kids?

Start by choosing a color or effect idea, then cut colored gels, cellophane, or translucent fabric to fit over a camera or phone lens. Mount the material on a cardboard tube or secure with tape/rubber bands, keeping the lens edges clear. Take identical photos with and without the filter, experiment with layering or holes, and compare results. Encourage kids to tweak colors and shapes, note differences, and try variations to learn how light and color change images.

What materials are needed to build a simple physical camera filter?

Gather colored gels or cellophane, translucent plastic (like clear report covers), scissors, tape, rubber bands, and a cardboard tube or stiff paper to make a sleeve. You’ll also need a phone or camera, markers or stickers for decoration, and a soft cloth to protect the lens. Optional: a clothespin or binder clip to hold the filter, punch for holes, and a small flashlight for testing light transmission safely.

What ages is this invented camera filter activity suitable for?

This activity suits preschoolers (with heavy adult help) through teens. Ages 5–7 enjoy layering colors and need close supervision for cutting and tape work. Ages 8–12 can build simple mounts and experiment more independently, while teens can explore complex effects, layering, and documenting results. Adjust tools and supervision to match fine motor skills and safety: younger children shouldn’t use sharp scissors or handle fragile camera parts alone.

What are the benefits of making and testing a homemade camera filter?

Making filters teaches kids about light, color mixing, and cause-and-effect while boosting creativity and problem-solving. It encourages observation, comparing results, and iteration—basic scientific thinking. Photography skills like composition and exposure awareness improve as children see how filters change mood and focus. The hands-on nature also builds fine motor skills and confidence in trying ideas, and it’s a low-cost, screen-friendly way to explore visual art.

Ready to create?