Light, Captured

Light, Captured is a teaching page built around a single session: a short talk followed by a photo walk. It frames photography as a continuous story, starting with a hole in a wall and ending with the four cameras in your pocket, so participants see the same principles across centuries of tools.

The talk is split into five numbered parts. It opens with the camera obscura and the straight-line travel of light, then covers lens, focal length and shutter, moves into exposure and its trade-offs, and closes with the question of whether a photo is ‘real’. Each section uses plain comparisons, such as a big hole being bright but blurry versus a tiny hole being sharp but dark.

A key thread is how both film and sensors merely count photons. Film uses randomly sized silver halide crystals that turn black in the developer, producing a negative; a sensor uses a regular grid of light buckets under red, green and blue filters, with software guessing the missing colours. This side-by-side makes the medium feel less mysterious.

The material suits beginners, students, and anyone who wants a structured first pass through photographic fundamentals before shooting. The final segment sends people out with their phones, so the session rewards participation over passive reading. Come with a camera or phone and expect to shoot after the theory.