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Khan Academy
Khan Academy: Simple Pinhole Camera
Try changing the aperture in the pinhole camera simulation below and taking an image. After experimenting with it for a while, answer the questions below.
Khan Academy
Khan Academy: The Effect of Focal Distance
Using a simulation of a pinhole camera, try capturing images using different focal distances, and then answer the questions below.
Khan Academy
Khan Academy: Circle of Confusion Calculation
Understand how we can calculate the radius of a circle of confusion
Khan Academy
Khan Academy: Circle of Confusion Diagram
Understand the diagram we have created to calculate the radius of a circle of confusion.