Observed arrival · 2026-09-14

Focal Lab Turns Lens Theory Into Something You Can Drag Around

focallab.net Observed source

Editorial interest 82/100 Selection signal · not a rating of the site

An interactive photography simulator shows how focal length, aperture, sensor format, subject distance, and background distance change a shot.

Landing page captured for the 2026-09-14 issue.

Field notes

Focal Lab combines a draggable scene with controls for lens choice, aperture, sensor format, orientation, and camera distance. Its comparison mode can preserve subject size while changing focal lengths, making perspective changes easier to isolate. The visible range is unusually broad: focal lengths run from 12mm to 1200mm, aperture from ƒ/1.2 to ƒ/22, and the page reports both horizontal angle of view and a calculated in-focus range.

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✦PrettyNotable craft visible

●ProPolished or operationally mature

◎NicheUnusually specific use

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