Photographer Nicolas Reusens has always been interested in insects, so when he purchased his first DSLR three years ago, he immediately dove into the art of macro photography. By using the technique known as focus stacking — combining several images taken at different depths of field — he’s generated some truly eye-popping photos of creepy crawlies from all over the world. Read more…
Focus stacking is when you combine multiple photographs of different focus distances in order to obtain a single photo with a much greater depth of field than any of the individual shots. This can be done by turning the zoom ring on your lens, but this can be difficult to control (especially for highly magnified photos). It can also be done using special rigs designed for the purpose, but those are generally quite pricey.
Photographer and software engineer David Hunt recently came up with the brilliant idea of turning an old flatbed scanner into a macro rail for shooting focus-stacking photos.
Focus stacking is a technique for creating photos with a large depth of field by combining multiple photos with shallow depth of fields. One of the applications is in macro photography, where the technique is often used to make sharp images of tiny insects. Oleg over at Circuits@Home wanted an easier way to focus stack while shooting in the field, so he build a focus stacking assistant using Arduino. Given two focal points, the tool automatically takes a sequence of photographs, moving the focus slowly from one point to the other.
Oleg shares some details on how he created his EOS camera version, and says he’s also working on a Nikon version.
Focus stacking assistant for EOS cameras (via Hack a Day)
Image credits: Photographs of flies by Muhammad Mahdi Karim