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National Gallery at Home: Make your own camera obscura!
How to Build a Camera Obscura with Craft Store Supplies
Cardboard Camera Obscura : 9 Steps (with Pictures) - Instructables
Make a Cardboard Camera Obscura - YouTube
How to: Make Your Own Camera Obscura - Black Creek Pioneer Village
How to Build a DIY Mini Camera Obscura - YouTube
Friday DIY: Create Your Own Camera Obscura - Getty Iris
How to Make a Camera Obscura - YouTube
How to Build a Camera Obscura - PictureCorrect
Make a Camera Obscura From a Cereal Box - Instructables