Preparing the specimen

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How a Camera Sees Interactive optical anatomy
Whole camera

An interactive lesson in light

See what happens inside the split second of a photograph.

Rotate a detailed camera, open its body, isolate each component, and follow light from the world through the lens to the sensor.

Enter the specimen

01 · Optical anatomy

Explore the camera.

Drag to rotate · Scroll or pinch to zoom · Select a numbered marker to inspect a part

Whole specimen
CAMERA BODY Drag to rotate · Scroll to zoom
Visible layers

Moment of capture

Follow the split second between incoming light and the finished photograph.

03 · Exposure lab

Three controls. One photograph.

Aperture, shutter speed, and ISO work together. Change them and watch the simplified preview respond.

More lightMore depth
Freeze motionMotion blur
CleanerBrighter
Exposure balance
Balanced
Live previewf/4 · 1/250 · ISO 400

A balanced exposure with moderate depth of field, frozen motion, and low visible noise.

04 · A surprising detail

The lens projects the scene upside down.

Light rays cross after passing through the lens. The sensor receives an inverted image, and the camera’s processor displays it in the expected orientation.

How a camera forms and processes an image Light from a house and tree bends through four lens elements, crosses, and projects the scene upside down on the sensor. Camera processing then presents the same scene upright on the display. SCENE LENS 4 ELEMENTS + APERTURE SENSOR INVERTED IMAGE Optical image arrives inverted PROCESSED IMAGE Camera processing displays it upright Vertical image-formation diagram A landscape sends light downward through multiple lens elements. The rays cross and form an inverted image on a sensor before an upright processed photograph appears on a camera display. SCENE LENS MULTI-ELEMENT OPTICS SENSOR · INVERTED IMAGE Optical image arrives inverted PROCESSED IMAGE

Camera processing displays it upright

05 · Two camera paths

Mirrorless and DSLR cameras see differently.

A

Mirrorless

Light travels through the lens directly to the image sensor. The screen or electronic viewfinder shows a live sensor feed.

Lens→Sensor→Screen
B

DSLR

A mirror normally redirects light toward an optical viewfinder. The mirror lifts out of the way when the photograph is taken.

Lens→Mirror↗Viewfinder

Look again

A camera does not simply copy a scene. It measures light, makes choices, and rebuilds the result.

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