Opus 5.5 — generalDifficulty: IntermediateProduction path: Coding & simulation

Interactive Camera Lens Lab (Aperture & DoF)

Simulate thin-lens focus, f-stop, focal length, and sensor size with draggable subjects and live depth-of-field blur on canvas.

Prompt

78 words · 547 characters
Build an interactive lens lab in one HTML file.

Model: thin lens equation 1/f = 1/s_o + 1/s_i; circle of confusion from sensor diagonal and f-number.
UI sliders: focal length (24–200mm equiv), f-stop (1.4–16), focus distance, sensor (full-frame/APS-C).
Scene: 3 draggable targets on a ground plane with depth labels.
Rendering: sharp plane at focus distance; approximate bokeh blur for out-of-focus layers (gaussian or disk kernel—document tradeoff).
Include "copy settings" JSON and a one-paragraph physics caveat (diffraction limit simplified).

Workflow notes

Validate against a real photo EXIF sample. Use for science explainers before exporting frames to video pipelines.

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