September 18, 2025

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A close-up of an electronics workbench with a circuit board, wires, a linear rail system, a magnifying glass, and various electronic components arranged on a wooden surface.

How to Build a ‘Simple’ Focus Stacking System

Each year, my photographic instrumentation students build very simple focus stacking systems. After several years, I decided to construct a more advanced version that could move a stepper-motor-driven stage to precise positions, automatically collect a series of images, and then manually use a stacking program for combination into a single high-depth-of-field image.