Focus stacking er en teknik hvor man kan opnå stor dybdeskarphed på makrobilleder ved at spleje flere billeder vha. software. Til at lette optagelsen af billerne, kan et automatiseret program på en computer indstille kameraets fokus og tage en række billeder. Med et stykke elektronik der kan det samme, kan man også gøre det i felten/på værkstedet uden at skulle have computeren med.
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One of my favorite shooting techniques is focus stacking. Many pictures on Circuits@Home site are made using this technique. I use Helicon Focus for post processing and even though this program has camera control built-in, it obviously requires a computer close to the object of shooting. In order to be able to control my camera in the field, I wanted to replace a laptop with simple lightweight controller able to move focus of camera lens and take pictures between steps. In this article, I will show how to build one fromArduino, USB Host Shield and several small parts
Fra: http://www.circuitsathome.com/camera-control/focus-stacking-assistant-var-mini-build-log
Oprindeligt design: http://www.circuitsathome.com/camera-control/focus-stacking-assistant-for-eos-cameras