Photography Tools

Photography tools for the optical and timing math that should happen before the camera comes out: depth of field for a chosen sensor, lens, aperture, and subject distance; hyperfocal distance for landscape work; macro depth of field for product and insect photography; circle of confusion for unlisted sensor formats; aspect-ratio conversion for prints and crops; and interval timing for timelapse sequences. The formulas are standard optics; the value is in not having to look them up on a phone with cold hands at a viewpoint. The common assumption that wrecks shots is that depth of field depends only on aperture; sensor size, focal length, and subject distance all matter just as much, which is why the depth of field tools here ask for all four and report near limit, far limit, and the split between front and back sharpness rather than a single figure. If you are new to the category, start with the depth of field tools before any portrait or landscape shoot, the macro variants if you shoot close-up, and the circle of confusion tools if your camera body is not in the standard preset list. The tools assume a thin-lens approximation, which is accurate for normal subject distances and breaks down inside the macro range, where the macro-specific tool handles the correction.

13 tools available